TCS Placement Model Questions

Sakshi Education

TCS Placement Model Questions

There are two pipes A and B. If A fills 10 litres in an hour then B can fills 20 litres in same time. Likewise B can fill 10, 20, 40, 80,160……litres in 1st, 2nd.3rd….hrs respectively. If B filled (1/16)th part of a tank in 3 hours, how much time will it take to fill the tank completely?
Ans: 7 hours. (This model asked many no. of times)
In a shopping mall with a staff of 5 members the average age is 45 years. After 5 years a person joined them and the average age is again 45 years. What’s the age of 6th person?
Ans.20 years. (This model asked many no. of times)
Find (4x+2y)/ (4x-2y) if x/2y=2 Ans.9/7 (This model asked many no. of times)
Find the average speed, if a man travels at a speed of 24kmph up and 36kmph down at an altitude of 200m. Formula is 2xy/(x+y). 144/5 kmph.
Same model as 4th question. But it is on flat surface. Formula is same 2xy/(x+y).
Six friends go to pizza corner there are 2 types of pizzas, and six different flavours are there they have to select 2 flavours from 6 flavours. In how many ways we can select?
Ans: 6C₂. (This model asked many no. of times)
3, 15, x, 51, 53,159,161. Find x.
Ans: 17. (This model asked many no. of times)
3 friends A, B, C went for week end party to McDonald’s restaurant and there they measure there weights in some order in 7 rounds. A; B; C; AB; BC; AC; ABC. Final round measure is 155 kg then find the average weight of all the 7 rounds?
Ans: 4(155)/7=88. (This model asked many no. of times)
There is a toy train that can make 10 musical sounds. It makes 2 musical sounds after being defective. What is the probability that same musical sound would be produced 5 times consecutively?
Ans: 1/2 * 1/2 * 1/2 * 1/2 * 1/2 = 1/32……….(This model asked many no. of times)
(There was a long story, I'll cut short it). There are 5 materials to make a perfume: Lilac, Balsalmic, Lemon, Woody and Mimosaic. To make a perfume that is in demand the following conditions are to be followed: Lilac and Balsalmic go together. Woody and Mimosaic go together, Woody and Balsalmic never go together. Lemon can be added with any material. (Actually they had also mentioned how much amount of one can be added with how much quantity of the other; but that's not needed for the question.) All of the following combinations are possible to make a perfume EXCEPT:
1) Balsalmic and Lilac. 2) Woody and Lemon
3) Mimosaic and Woody. 4) Mimosaic and Lilac
Answer: Mimosaic and Lilac. I have made the question here really easy to understand. But the actual question was in a twisted language and it was difficult to find the answer. It took me some time to get to the answer. Ans. 4
A triangle is made from a rope. The sides of the triangle are 4 cm, 5 cm and 7 cm. What will be the area of the square made from the same rope?
Ans: 16 (This model asked many no. of times)
What is the distance of the z-intercept from the x-intercept in the equation 3x+8y+4z=24. Ans: 10.
A scientist in Antarctic region conducts research on bears came to know that bears changes according to the location .once he moves 1 mile towards north, then he moves 2 miles towards east, then 1 mile towards south. Now the colour of bear he found will be in:
Ans: white (In Antarctic region bears in white colour.) (This model asked many no. of times)
(1/3) of a number is 3 more than the (1/6) of the same number?
Ans. 18
There are 11 children in a family. Youngest child is a boy. What is the probability of all are boys?
Ans.1/2¹⁰.
A boy bought a roll A of 56 inches wide and 141 yards long. He also bought a roll B of 77 inches wide of length 333yards. We don’t want any details of B. Some irrelevant matter. Final question is Time taken for cutting A into 1 yard piece is 2 seconds. Time taken to cut into 141 pieces of 1 yard each is? To get 141 pieces we have to make 140 cuts.
Ans is 2(140) =280 seconds.
A Person buys a horse for 15 pounds, after one year he sells it for 20 pounds. After one more year, again he buys the same horse at 30 pounds and sells it for 40 pounds. What is the profit for that person?
Ans. 15 pounds
John buys a cycle for 31 dollars and given a cheque of amount 35 dollars. Shop Keeper exchanged the cheque with his neighbour and gave change to John. After 2 days, it is known that cheque is bounced. Shop keeper paid the amount to his neighbour. The cost price of cycle is 19 dollars. What is the profit/loss of a shop keeper?
Ans is 23dollars Loss. (cost price + change given).
In a family there are some boys and girls. All boys told that they are having equal no. of brothers and sisters and girls told that they are having twice the no. of brothers than sisters. How many boys and girls present in a family?
Ans : 4 boys and 3 girls
There is a die with 10 faces. It is not known that is fair or not. Two captains want to toss the die for batting selection. What is the possible solution among the following?
1.If no. is odd it is head, if no. is even it is tail
2.If no. is odd it is tail, if no. is even it is head
3.Toss a die until all the 10 digits appear on top face. And if first no. in the sequence is odd then consider it as tail. If it is even consider it as head.
Ans. either 1 or 2.
2 years ago age of A is x times that of B. 3 Years hence the age of A is 4/3 times that of B. What is the present age of B in binary form? (6x-3)/ (3x-4). It is not binary form. After getting the answer convert the number into binary form. For e.g. If answer is 35.It is in the decimal form. In the binary form its value is (100011)2.
Metal strip of width ‘x’ cm. 2 metal strips are placed one over the other, then the combine width of 2 strips is ‘y’. If ‘z’ strips are placed in that manner. What is the final width of that arrangement?
Ans is (z-1) (y-x) +x. Hint: 2x=y. Actual answer is zx. If in the given options if zx is not there, substitute y=2x in the options and see which one is equal to zx.
There are 100 men and 100 women on the dance floor. They want to dance with each other. Then which of the following statements is always true:
1.There are 2 men who danced with equal no. of women’s
2.There are 2 women who danced with equal no. of men………..we don’t know the other options that’s why we can’t say the answer.
A game is played between 2 players and one player is declared as winner. All the winners from first round are played in second round. All the winners from second round are played in third round and so on. If 8 rounds are played to declare only one player as winner, how many players are played in first round.
Ans is 2⁸.
There are 3 boys A, B, C and 2 Girls D, E. D always sits right to A. Girls never sit in extreme positions and in the middle position. C always sits in the extreme positions. Who is sitting immediate right to E?
Ans : A or C
39 members attended the party. In that 22 are males, 17 are females. The shake hands between males, females, male and female. Total 12 people given shake hands. How many such kinds of such shake hands are possible?
Ans is ¹²C₂. (This model asked many no. of times)
There are 1000 pillars for a temple. 3 friends Linda, Chelsey, Juli visited that temple. (Some unrelated stuff) Linda is taller than Chelsea and taller than 2 of 1000 pillars. Julia is shorter than Linda. Find the correct sentence?
a. Linda is shorter among them.
b.Chelsea is taller than Julia
c.Chelsea is shorter than Julia
d.Cannot determine who is taller among Chelsea and Julia.
Ans: 4
Entry ticket to an exhibition ranges from 1p to 31p. You need to provide exact change at the counter. You have 31p coin. In how many parts will you divide 31p so that you will provide the exact change required and carry as less coins as possible?
a) 22 b) 31
c) 6 d) 32
Ans is 6……………(This model asked many no. of times) change required is 1p,2p,3p,5p,10p,10p.
There are 2 friends Peter and Paul. Peter age was twice as old as Paul when peter was as old as Paul is now. Sum of the present ages of Peter and Paul is 35.What is the present age of Peter?
Ans is 21. (This model asked many no. of times)
A lady took out jacket and gloves, which are available in blue 26, yellow 30 and red 56. Power goes off; she can distinguish between gloves and jacket but not in colours. What's the probability that she will pick up pair of gloves of same colour. (This model asked many no. of times) …………
Two bowls are taken, one contains water and another contains tea in equal amount. One spoon of water is added to second bowl and mixed well, and a spoon of mixture is taken from second bowl and added to the first bowl. Which statement will hold good for the above?
(Ans: second liquid in first bowl is equal to first liquid in second bowl). (This model asked many no. of times)
Rearrange and categorize the word ‘RAPETEKA’?
Ans: bird (parakeet) (This model asked many no. of times)
A lies on Mon, Tues, Wed and speak truths on other days, B lies on Thu, Fri, Sat and speaks truths on other days. One day A said I lied today and B said I too lied today. What is the day? (This model asked many no. of times)
Ans…………..
One grandfather has three grandchildren, two of their age difference is 3, eldest child age is 3 times youngest child’s age and eldest child’s age is two times the elder child age. What is the age of eldest child?
Ans: 18. (This model asked many no. of times)
Once pet's age was 2 times Paul’s age. But at that time pet's age= Paul’s current age . Sum of their present ages is 40. How old is pet now?
Ans: 24
Block has 10, 9, 5 size. How many unit cubes is needed to make a block of that size?
Ans.10*9*5.
23 people are there, they are shaking hands together, how many hands shakes possible, if they are in pair of cyclic sequence.
Ans-22.
10men and 10 women are there, they dance with each other, is there any possibility that two men are dancing with same women and vice versa.
B is taller than J and 3 pillars. P is shorter than B and 2 pillars. Is j shorter/taller than P?
Ans-irrelevant question.
Sangarkara and Ponting selects batting by using a dice, but dice is biased so to resolve the issue ponty takes out a coin, what is the probability that dice shows correct option?
In school there are some bicycles and 4wheeler wagons. One Tuesday there are 18 vehicles and 58 wheels in the campus. How many bicycles are there?
Ans: 5(This model asked many no. of times)
Which is the smallest no. that divides 2880 and gives a perfect square?
a. 1
b.2
c.5
d.6
Ans: c (This model asked many no. of times)
How many 8 digit numbers can be formed by using 1, 2,3,4,5 with repetition is allowed and must be divisible by 4? (This model asked many no. of times)
a. 31250
b.97656
c.78125
d.97657
Ans: c
One problem on (a3-b3)/(a2+ab+b2).
Ans: ‘a-b’.
Key words in question (Fibonacci series, infinite series, in the middle of the question one number series is there. I got the series 3 12 7 26 15 b? (This model asked no. of times)
Ans: 54. (Logic: 3*2+1=7, 12*2+2=26, 7*2+1=15, 26*2+2=54)
A person has 7 penny’s with him and 1 water melon is for 1p, 2chickoos for 1p, 3 grapes for 1p. He has three sons. How can he share the fruits equally?
Ans: 1 watermelon, 2chickoos, 1grape………….(This model asked many no. of times)
Keywords: 1-100, prime numbers b/n 140-180. How many 2’s are there from 1 to 100?
Ans: 20 (Not only 2’s ,1’s,3’s,4’s,5’s,6’s,7’s,8’s,9’s,0’s also 20)…………
Difference between two numbers is 4 and product of two numbers is 45, what is the sum of the squares of numbers?
Ans: 106. (This model asked many no. of times)
A man is standing before a painting of a man and he says I have no brothers and sisters and his father is my father’s son. How is that person in the painting related to him?
Ans: His son. (This model asked many no. of times)
What is the value of [(3x+8Y)/(x-2Y)]; if x/2y=2?
Ans: 10.
A pizza shop made pizzas with M flavours. In home there are ‘N’ different flavours, ‘M’ flavours are taken to made pizza. In how many ways they can make pizza?
(Ans: NCM.).
In a market 4 men are standing. The average age of the four men before 4 years is 45, after some time one man is added and his age is 49. What is the average age of all?
Ans: 49.
In an organization, material, labour and maintenance costs are in the ratio of 4:6:7, the material cost is 100, what is the total cost?
Ans: 425.
Keywords: Density, Reluctance, Sensitivity, Voltage, Current, what is the Resistance Formula is “R=V/I”. (This model asked many no. of times)
There are 10 tables and 4chairs per table, each table has different number of people then how many tables will leave without at least one person?
Ans: 6. (This model asked many no. of times)
Keywords: Die, card, coin, b/w 2 to 12. Question is not clear.
In a school for a student out of 100 he got 74 as average for 7 subjects and he got 79 marks in 8th subject. What is the average of all the subjects?
Sol: The extra 5 marks will be distributed to all 8 subjects, 5/8=.625. 74+.625=74.625.
The ages of two people are in the ratio of 6:5 and by adding the numbers we get 44, after how many years the ratio would be 8:7?
Ans: 8. (This model asked many no. of times)
Two years before Paul’s age is 10times the Alice age and the present age of Paul is 4times the Alice. What is the presents Paul’s age?
Ans. 12 years.
One train travels 200m from A to B with 70 km/ph. and returns to A with 80kmph, what is its average speed? (This model asked many no. of times)
Peter and Paul are two friends. The sum of their ages is 35 years. Peter was twice as old as Paul when Peter was as old as Paul is now. What is the present age of Peter?
Answer: 21 years. The statement in the question was pretty confusing.
A girl has to make pizza with different toppings. There are 8 different toppings. In how many ways can she make pizzas with 2 different toppings?
Answer: 8C2 = 28. (This model asked many no. of times)
An athlete decides to run the same distance in 1/4th less time that she usually took. By how much percent will she have to increase her average speed?
Answer: 33.33%
A horse chases a pony 3 hours after the pony runs. Horse takes 4 hours to reach the pony. If the average speed of the horse is 35 kmph, what is the average speed of the pony? (This question was really long with loads of irrelevant statement).
Ans. 20kmph. (This model asked many no. of times)
There is a triangle and 3 ants on each vertex of the triangle. The 3 ants start to move randomly along the edges of the triangle. What is the probability that two ants will collide?
Ans. ¾.
Suppose there is a number 235 such that sum of first two digits is equal to the third digit. How many such 3 digits numbers are possible?
Ans.45.
One man wants to build a wall. The length and breadth of the wall are 20meters, 30 meters respectively. He needs 35 bricks for one square meter then how many bricks he need?
Ans. 20*30*35.
One person had three children. He has 7 pennies. Then how he can distribute the fruits among his child by following conditions.
a) He can get one water melon for 1 penny.
b) He can get 2 oranges for 1 penny.
c) He can get 3 grapes for 1 penny.
Ans: 1 water melon 2 orange 1 grape.
In T-nagar many buildings were under residential category. For buildings they number as 1 to 100. For shops, corporation numbered between 150 and 200 only prime numbers. How many times 6 will appear in building numbering?
Ans: 20 times.
This type of question if it is asked how many 2,3,4,5,6,7,8,9 then you blindly write the answer as 20. But for 1 answer will be 21 as 100 is included. (This model asked many no. of times)
Difference between two numbers is 4 and their product is 17. Then find the sum of their squares?
Ans: 50 (By using the formula (x-y)2=x2+y2-2xy)
6 persons standing in a queue with different age group, after two years their average age will be 43 and seventh person joined with them. Hence the current average age has become 45. Find the age of seventh person?
Ans. 69.
Solution: Here the question appear as an easy one, but carried a lot of unwanted sentences and unwanted data’s (I didn't mention above) in exam which may confuse you on solving technique.
Horse started to chase dog as it relieved stable two hrs ago. And horse started to ran with average speed 22km/hr, horse crossed 10 mts road and two small pounds with depth 3m, and it crossed two small streets with 200 mts length. After travelling 6 hrs, 2hrs after sunset it got dog. Compute the speed of dog?
Ans: As we have speed and travel time of horse, we can get distance travelled by it.
Hence d = 22*6 = 132km,.Exactly this 132km was travelled by dog in 8 hours (as it started two hours earlier).Hence speed of dog = 132/8 = 16.5km/hr. Ans:16.5km/hr.
16. 3, 22, 7, 45, 15, ? , 31
Solution: Here it appear simple, because it arranged in sequence manner, but the actual question was some what twist mentioning Fibonacci series and more over question was in statements (no numbers). Hence first try to understand the question well.
Here let group alternate terms 3, 7, 15, 31 (3+4 =7, 7+8 =15, 15+16=31)
Similarly for second group (22,45,? (22+23 = 45, 45+46 = 91) hence
Ans. is 91.
5 friends went for week end party to Mc Donald’s restaurant and there they measure there weights. Some irrelevant data. Final measure is 155 kg then find the average weight of 5 people?
Ans: 155/5=31.
((4x+3y)+(5x+9y))/(5x+5y) = ? as (x/2y) = 2
Ans: as x=4y put the value and get the answer.
If we subtract a number with y, we get 4 increase of number, once it got divided by y itself. Find that number?
Ans: 12 (we can easily predict from options, as we take y as 6).i.e. Let us assume that number is x. x-y= 4+ x/y. (This model asked many no. of times)
(209*144)2 + (209*209) + (209*144) + (144*144) =?
Ans: here you can use calc, many (4 to 5) questions were depend upon calc alone.(no need problem solving technique)……………..
I'm only son for my parents. (Some irrelevant statements in the middle to distract you). The man in picture is my father's son (some irrelevant statements). Who is he?
Ans: Himself.
A toy train can make 10 sounds, sound changes after every 4 min, now train is defective and can make only 2 sounds. Find probability that same sound is repeated 3 times consecutively (1 out of)?
Ans :( 1/2)*(1/2)*(1/2) = (1/8).
Ferrari is leading car manufacturer.*Ferrari S.p.A.* is an Italian sports car. It has enjoyed great success. If Mohan's Ferrari is 3 times faster than his old Mercedes which gave him 35kmph if Mohan travelled 490 km in his Ferrari then how much time (hours) he took?
Ans: 4.67 hours.
Lion, rat stay in jungle happily. Lion lies on: Mon, Tue, Wed.
Rat lies on: Wed, Thurs , Sat. If lion says: I didn't lie yesterday.
Rat says: I didn’t lie yesterday. So what day is today?...........
(This model asked no. of times)
The ratio of current age of X and Y is 5:7, sum of their ages is 60 years. After how many years their age ratio will be 7:9?
Ans: 10 years.
Inspired by Fibonacci series sankeeth decided to create is own series which is 1,2,3,7,7,22,15,67, like this, then what no. come immediately before 63?
Ans: 202
Explanation: Check alternate no.1,3,7,15=====>n*2+1
Similarly 2,7,22,67=======>n*3+1. So series is 1,2,3,7,7,22,15,67,31,202,63.
By using 1,2,3,4,5, how many 5 digit no. can be formed which is divisible by 4, repetition of numbers is allowed?
Sol: Last 2 place should be divisible by 4
So possible values for last two places are 12,24,32,44,52 this can be arranged in 5 ways. The rest 3 places can be filled in 5*5*5 ways.
So total is 54 .
There are two numbers (with some nonsense stuff) then addition of two numbers is 13, and multiplication is 21, then what is sum of their squares?
Explanation: XY=21 and X+Y=13. x2+y2= (x+y)2-2xy. Ans: 127.
Smita was making 1 design (again some nonsense) size of larger cube to be made is 5*5*5 using smaller cubes of 1*1*1. She created solid larger cube .Then she decided to make hollow cube of same size. Then how many 1*1*1 cubes required to make hollow larger cube.
Ans= 98. Explanation: (25+25) + (15+15) + (9+9)=98. (or).Number of cubes required to make a large cube is 125. Number of cubes removed to make it hollow is 3*3*3=27. So total no. of cubes required to make a hollow cube is 125-27=98.
2X/5Y=5X/3Y Then what is x/y?
Problem is wrong.
There is a dice having value from 1 to 6 on each face and a pack of cards having face card aces (huge chunk of nonsense). When 2 dies are thrown and their scores are added then which sum will come maximum number of times?
Ans: 7
Explanation: 7- 1,6 6,1 2,5 5,2 3,4 4,3 : 8- 2,6 6,2 3,5 5,3 4,4 : 9-4,5 5,4 3,6 6,3 10-5,5 4,6 6,4: 11-5,6 6,5 : 12- 6,6.
Thus 7's probability is more. (This model asked no. of times)
''Susha brought terilon cloth and rope to (some nonsence now just go to last 2 lines)". If rope is 153 meter long and it is to be cut into pieces of 1 meter long then how many times will she have to cut it?
Ans: 152 times
The cost of making a robot consists of material cost, repairing cost, colouring cost and is in the ratio 3:4:5. If the material cost is 1200 then find out the cost of the robot.
Ans: It is simple. 3 parts is 1200. So 3+4+5=12 parts=4800.
A tank is filled with water. In first hour 10 litres, in second hour 20 litres, and in 3rd hour 40 litres. If time taken to fill ¼ of the tank is 5 hours. What is the time required to fill up the tank.
Ans: 7 hours.
Keywords in question (Fibonacci series, infinite series, in the middle of the question one number series is there. I got the series 3 12 7 26 15?
Ans: 54.
(Logic: 3*2+1=7 12*2+2=26 7*2+1=15 26*2+2=54)
b*2+w*4=190 i.e. , b+2w=95 . We cannot get 2 unknowns from 1 equation, we need two equations for that. So just find options here to get the right answer and verify if you are getting integers as values of b and w.
There are two persons paul and Jay .Paul lies on Monday, Tuesday, Wednesday and the remaining days he speaks truth. Jay lies on Thursday, Friday, Saturday and the remaining Days he speaks truth. Once they meet each other, in their conversation Paul says that yesterday is the day one among those I lie. Jay also says that yesterday I also lie. What is that day?
a) Sunday.
b) Tuesday.
c) Thursday.
d) Wednesday
[Thought process: Now this day cannot be Sunday because in Monday paul speaks truth and Sunday everyone tells truth. So it must be weekdays. Again, Tuesday can not possible because Monday and Tuesday paul speaks truth. In case of Thursday, paul speaks lie and Wednesday he speaks true. And joy speaks truth in Thursday and he speaks lies in Wednesday. So, Thursday is the
answer……….
Related to direction & distance: a person is travelling in so and so direction, eg: 5km North then 5km East then 10km North then so and so. Find the distance between original & final positions.
Mumbai building department decide to give numbers to buildings. 1-30 numbers were given to industrial buildings. 1-100 were given to restaurant buildings. Find how many number of 2's (or 6's or 3's) were used while numbering restaurant buildings.
Ans: 20
A toy train can make 10 sounds, sound changes after every 4 minutes train is defective and can make only 2 sounds. Find probability that same sound is repeated 3 (or 8 or 9 etc) times consecutively.
Ans: 1/8.
My paper has different puzzle that is 20 cake pieces must be divided among 3 people mother, father and sons that is mother eats 2 pieces, father eats 3 and son eats half so what will be the quantity to choose the option which suits the question cum from options that is add the quantity by father and mother and son to get total 20 which will suit it that is the answer. …………….
A question on hand shake which is from shakus puzzle book formula is nc2=n(n-1)/2 number of hand shakes problem. 8 people attending party number of hand shakes means 8*7/2=28 or if you find the word cycle then answer is 7 one less .
3,7,7,25,15, ,31 (here two series are merged 1st:3,7,15,31 and 2nd:7,25,-,).
Answer depends on the options.
In a colony the municipality decided to number the houses and the shops. They want to number the shops with the numbers containing 3 between 1-100. The houses are 10-20 floored and at the back of the houses 8 feet is left for fire exit. How many shops can be numbered?
a.3
b.10
c.19
d.20.
Ans: 20
3, 15, x, 51, 53,159,161. Find X
Ans: 17.
Man, woman and a boy finish work together in 6 days. Man alone takes 10 days; woman alone takes 24 days then how many days boy alone will take to do that work?
Ans.40 days.
There are ten spots in a library and each spot has 1 table and each table has ten chairs. 10 students come into library and want to study. Only one person sits in the 1st table, and 2 persons sit in the 2nd table and so on.... finally how many tables would be blank?
6 tables.
You have coins of all dimensions. You need to provide exact change at the counter. You have 155p coin. In how many parts will u divide this so that u will provide the exact change required and carry as less coins as possible?.................
A block has 14cm width. If we combine 2 blocks the width will be 25cm. then if we put 150 blocks in similar manner, then what is the resultant width.
Sol: I think there is a mistake in the problem because 14+14 cannot be 25. Let us assume it is right. For every assembling of two blocks width is decreased by 3 cm. To get 150 blocks we have to assemble them 149 times. So width is decreased by 149*3. So Final width= 150*14-149*3.
A man started from his house and travel 50km towards north and take his left turn and travel 50km and then take right turn and travel 50km then in which direction he is from his house
Ans. North-West.
A man has age in years equal to his daughters age in months and daughter age is equals to his grand daughter age in weeks and her age in weeks total age of 3 members is given we need to find out the mans age…………
In a school for a student out of a 100 he got 74 of average for 7 subjects and he got 79 marks in 8th subject. What is the average of all the subjects?
If an old woman's age is the same as her three grand daughters i, mean the number of days old child=the no of weeks old child=no of months old child. The total years of all these people is 114 years then how old is the old woman?..................
The year has 365 days and 30 days each month. I calculated it with the options given try 2 use the calculator its easy. Don't remember the
answer………………
There was a piece of cloth which is 135 miles long and 35ft wide and some nonsense again then he wants to divide the cloth into pieces with one mile each if he took 7 seconds for cutting a piece. What is the time taken for cutting the whole of the cloth into pieces?
Ans: 135-1=134 x 7=938 seconds.
If the area was hit by a virus and so the decrease in the population because of death was x/3 and the migration from other places increased a population by 2x then annually it had so many people. Find out the population in the starting………….
If the milk and water ware added in the ratio 5:4 then how much more water should be added so he gets the ratio of 6:7.
Ans: Quantity of added water=11/6 times original quantity of mixture.
A tank fills in the sequence of 10, 20, 40, 80.... (Means 10 litres in 1 hr, 20 litres in 2nd so on.). If at the 4th hour the tank is 1/4 full .When will it be full?
Ans: x/4=80.That means capacity of tank is 320 litres. From the series we can see that in 5th hr it's 160 and then in 6th hr its 320 so answer is 6.
A lady is trying to pick gloves and hats from her wardrobe in the dark. She has 22 white and 33 green ones. She wants to pick a pair of gloves of white and green. How many tries before she gets it right?..................
There was a scientist who after doing research, found that colour of the skin of animals vary with change in distance. One day he started to chase a bear. He walked 1 mile towards north, then turned and walked 1 mile towards east and then caught the bear and radio-ribboned the bear. Then he left the bear at that spot and returned to his base-station taking a turn towards south (walked 1 mile towards south). Then what was the colour of bear at that spot?
a) White
b) Brown
c) Black
d) Grey
The problem of BEAR is about identifying its colour with regard to its Region whether it is from North or South or East or West. Because, The Bear's colour will vary in different location and so they have mentioned this as distance. As far I know, North - White Bear (Polar Bear) East-Black Bear. South-Black Bear (Sometimes Grey too) West-Brown Bear. (I don’t know whether this answer is right or wrong. I don’t have that much G.K. You check it.)
In the class of 40 students, 30 speak Hindi and 20 speak English. What is the lowest possible number of students who speak both the languages?
a)5
b) 20
c) 15
d) 10
e) 30
Ans.10
If A, B and C are the mechanisms used separately to reduce the wastage of fuel by 30%, 20% and 10%. What will be the fuel economy if they were used combined.
Ans: 49.6%
Formula is (x+y- xy/100). First you apply this for two numbers and then apply again for the resultant and third number.
A can do a piece of work in 20 days, which B can do in 12 days. 9 days B does the work. How many days will A take to finish the remaining work?
Ans.5 days.
If 20 men take 15 days to complete a job, in how many days can 25 men finish that work?
Ans: 12 days.
One fast typist type some matter in 2hrs and another slow typist type the same matter in 3hrs. If both do combine in how much time they will take to finish.
Ans: 1 hr 12 minutes.
The ratio of incomes of C and D is 3:4.the ratio of their expenditures is 4:5.Find the ratio of their savings if the savings of C is one fourths of his income?
Ans: 12:19.
3, 22, 7, 45, 15, ? , 31
Solution: Here it appear simple, because it arranged in sequence manner, but the actual question was some what twist mentioning Fibonacci series and more over question was in statements (no numbers). Hence first try to understand the question well. Here let group alternate terms 3, 7, 15, 31 (3+4 =7, 7+8 =15, 15+16=31)
Similarly for second group (22,45,? (22+23 = 45, 45+46 = 91) hence answer is 91.
((4x+3y)+(5x+9y))/(5x+5y) = ? as (x/2y) = 2.
Ans: 48/25.
Key words in question (Fibonacci series, infinite series, in the middle of the question one number series is there….I got the series 3 12 7 26 15?
Ans: 54
(Logic: 3*2+1=7 12*2+2=26 7*2+1=15 26*2+2=54)
20 people going to one temple. (some time waste data) They want Rs. 20. For men-Rs.3, women-Rs.2, children-50 paisa. How much money spends for men, children and women?
a)Rs.6-men, Rs.4-children, Rs.10- women
b)Rs.3-men, Rs.7-children, Rs.10- women
c)Rs.3-men, Rs.8-children, Rs.9- women
d)Rs.9-men, Rs.3-children, Rs.8- women
Sol: By using options we calculate it easily. From option (ii)
Men - 1man*Rs.3= Rs.3 Children - 14children* 50paisa= Rs.7
Women - 5women*Rs.2= Rs.10. 1+14+5=20 people.
Adam sit with his friends in stadium (some time waste data) 5 rounds are running. Every round half of the teams eliminated. Lastly one team win the game. How many teams are played in the tournament?
a) 30
b) 31
c) 32
4) 33
Sol: by using options we can easily find answer.
Ans.32
From option c, Total 32 teams played. Next 16, 8,4,2,1.
Shusan brought terlin cloth and rope (some time waste data). If rope is 115metre long and cut 7 times then how many pieces you get?
a) 805
b) 804
c) 802
d) 806
Sol: 115*7times =805 pieces………
Average Age of 3 members is 45. One person added to the 3 members’ team, then the new average is 47. Find the last person age?
Ans: 53.
Pizza parlour provides pizzas there were 2 toppings available initially pepperoni and salami but now they introduces 7 new items (some time waste data). One person wishes to buy two different pizzas from the new items. How many ways he can do that?
Ans: 7*6/2=42/2=21
In laboratory one person checks Electronic equipment (some time waste data). Voltage 10v and current is from a then the resistance is?
Sol: R= V/I = 10/4 = 2.5kv
A pong ran away from stable to NEW YORK then went to US then to BEIJING ran through grass (Some time waste data).Horse leave 4 hours after pong(some time waste data) then pong went to sky. If the speed of the horse is 45kmph and he left stable 3 hours then pong’s average speed?
Ans: 15 kmph.
One organization makes one robot.(Some time waste data). The costs of material; labour and maintenance are in the ratio 4:6:7. The material cost is 500. What is the total cost?
Ans: 2125.
Two years before Paul’s age is ‘x’ times the Alice age and the present age of Paul is ‘y’ times the Alice age. What is the present age of Paul’s?
Ans: 2y(x-1)/(x-y).
Pink’s age before 6 years was “2” times the age of Anderson. Pink’s age after 6 years will be “3/2” times the age of Anderson. Then find the present age of pink’s?
Ans: 30.
(Some waste data) 10 boys are there. From that how many ways, we can select the youngest age person?
a) 2
b) 1024
c) 512
d) 2!
One triangle parameters are 16, 18 and 20 (some time waste data). By using you can build a square then the area of square is?
Sol: (16+18+20)/4 = 13.5; Square area is 13.52 =182.25.
1 to 20 numbers are there (Some waste data). If n numbers are false at the end of the series!
X) 1st 10 numbers are true. Y) Last 10 numbers are false.
i. X is true. ii. X & Y both are true.
iii. Y is false. iv. Either X or Y is false.
Out of 7 children the youngest is boy then find the probability that all the remaining children are boys.
Ans: 1/26 = 1/64………
20men and 20 women are there, they dance with each other, is there possibility that 2 men are dancing with same women and vice versa.
10 people are there, they are shaking hands together, how many hands shakes possible, if they are in pair of cyclic sequence.
Ans-9.
Passage joe is taller than jerry and 3 pillers. kistern is shorter than joe and 2 pillers. Is jerry shorter/taller than kistern ?
Ans: Insufficient data.
A volume of A are having in a container of sphere. How many semi hemispheres of B volume each will be required to transfer all the A in to semi hemispheres? Question is not clear.
A, B, C, D, E are there among A, B, C are boys and D, E are girls D is to the left of A and no girl sits at the middle and at the extremes. Then what is the order of their sittings. (Data is not sufficient.)
One formula : d = 10*(t-14), t>14 then what is the diameter when t=40?
Ans: 260.
Out of 6 children the youngest is a boy then find the probability that all the remaining children are boys.
Ans: 1/25 = 1/32.
Series Problem like 4 12 x 44 46 132 134 begin of the Skype highlighting 44 46 132 134 end of the Skype highlighting. Find x?
There are 1000 pillars for a temple. 3 friends Linda, Chelsey, Juli visited that temple. (Some unrelated stuff) Linda is taller than Chelsey and taller than 2 of 1000 pillars. Juli is shorter than Linda. Find the correct statement?
i. Linda is shorter among them.
ii. Chelsey is taller than Juli.
iii.Chelsey is shorter than Juli.
iv. Cannot determine who is taller among Chelsey and Juli .
Ans: d
Entry ticket to an exhibition ranges from 1p to 7p. You need to provide exact change at the counter. You have 7p coin. In how many parts will you divide 7p so that you will provide the exact change required and carry as less coins as possible?
a) 8
b) 7
c) 5
d) 3
Ans: d Hint: 1p,2p,4p
Dhoni and Ponting are waiting for the toss to happen. Umpire found that the coin to be tossed is missing. Ponting then takes a dice (1-6) from his pocket and asks the umpire to toss with it. Umpire feels both the captains may not get fair chance with dice. Dhoni then suggests a solution to umpire which then would give fair chance to both captains. What would be the idea of Dhoni? (It depends upon the options.)
a.Toss the dice if even no. comes captain will win the toss and if it is odd he loses.
Find (31*31*31/44*44*44)*(87*87*87/56*56*56). Definitely we require a calculator.
There are two peculiar numbers. When 9 will be subtracted from both, then first one will be twice of the 2nd one. But when 9 is added to both, then first one will be 4/3 times the second one. What are the two numbers?
Ans: 27, 18.
Tom ,Tina, Dick, Harry, Asha make their average with some arrangement like at first Tom and Tina, then Tom and Dick, then Tina and Dick.........like that. And the average weight is given. So what will be the last weight?
Problem is not complete.
(They have given some history of copper and its density and its uses and applications in five or six lines ) and then asked this question........ if 7v passes to that wire and a current of 260mA then find the resistance.......
Ans. 0 .03k…………..
Lion lies on Monday, Tuesday, Thursday and rest of the days it speaks truth. Rat lies on Tuesday, Wednesday, Saturday and rest of the days it speaks truth.
Rat and lion said one day that yesterday only I lied .On which day they said.
Area of trapezium? The area of the trapezium is given by the following formula where a and b are the lengths of the parallel sides and h is the perpendicular distance between the parallel sides.
(a+b) h/2.
If a person moves 15km straight and turns right and moves 15km straight then how much distance he needs to walk to reach starting point?
If there are 30 cans out of them one is poisoned. If a person tastes very little he will die within 14 hours. So if there are mice to test in 24 hours, how many mice’s are required to find the poisoned can?
Ans: 29
If a and b are mixed in the ratio 3:5 and b, c are mixed in the ratio 8:5 if the final mixture is 35 litres, find the amount of b in the final mixture.
Ans: 15.73 litres.
1! +2! +....+50! =?.............
X is 6 years younger to Y. X's father is a businessman who invested 10000/- at 8% rate of interest and obtained his amount after 10 years. Y's father is a job holder who invested around 20000 at 2% rate and obtained his amount after 20 years. Now Compounded both of them get around ABC Rs/-. After 5 years the ratio of ages of X and Y is 1:2. Now X's father is 20 years older to Y and Y' father is 30 years more than X. After 20 years again. X's mother asks X's father to purchase a LCD TV which costs around 45000/-. What is the age of X and Y together?
Ans: answer lies in considering two statements together i.e \"X is 6 years younger to Y\" and \"After 5 years the ratio of ages of X and Y is 1:2”. X=1, Y=7.
If the first 3 no.s are 1,3,8...so on then at which position will you get 143?
(question is not clear)
People: democracy::wealth: X..... X is
a) oligarchy b) anarchy c) monarchy d) democracy
Ans: A
Kunal and Sagar are Neighbours. Kunal buys a Colour Television for Rs.15000, with the discount of 15%. They Ratio of their Ages were 6:5, 6yrs ago. Sagar buys a television for 17000. The difference of their discounts is 10%.The ratio of their ages will be11:10 this is four years hence. What are their Present Ages?
Ans: Kunal=18, Sagar=16 . (x-6)/((y-6)= 6/5 (x+4)/(y+4)=11/10.
There are 10 reading spots in a room. Each reading spot has a round table. Each round table has 4 chairs. If different number of persons are sitting at each reading spot. And if there are 10 persons inside the room. Then how many reading spots do not have at least a single reader.
(1) 5 (2) 6 (3) 7 (4) None
Ans 6. Because different no. of persons are sitting on round table. So possible differnt combinations for 10 people will be 1 2 3 4. because max 4 people can sit on round table. so round tables left are 6.
A boy want to make a cuboid of dimension 5m, 6m, 7m from small cubes of .04 m3. Later he realized he can make same cuboid by making it hollow. Then it takes some cubes less. What is the no. of these cubes?
Ans. Volume of solid cuboid= 5*6*7=210 m3.Length of each side of the small cube is 0.2 m. To make length 5m we have to arrange 25 small cuboids length wise. Similarly width wise 30 and height wise 35 cuboids. Now we are going to find volume of the hollow space .Total number of cubes we have to remove to make it hollow is (25-2)*(30-2)*(35-2).
Half of a no. is greater then 1/6 of same no. by 2. What is the no?
Ans. 6
Two years ago A was 6 times older than B. Now he is 2 times older than B. What is the age of A.
Ans: Age of A=5, Age of B= Two and half.
There are three brothers; two of them having the age difference of three years. The Eldest brother is 2 more years older than sum of the age of other two brothers. What is the age of eldest brother?
(1) 8 (2) 10 (3) 12 (4) 15.
Ans:15 years. The age of other two brothers is 5, 8years.
A man has some goats and pigeons. When we count their legs we got 140, and no. of heads are 50. How many pigeons and goats are there?
Ans: goats=20. Pigeons=30.
There is a plot of 35m * 12m, and 1 sq m require 100 bricks then how many bricks are required to cover whole area of plot.
Ans. 35*12*100.
A man whose age is 45 yrs has 3 sons named John, Jill, Jack. He went to a park weekly twice. He loves his sons very much. On a certain day he find # shop kippers sailing different things. An apple cost 1penny, 2chocalate costs 1penny& 3 bananas cost 1 penny. He has bought equal no. of apple, chocolate & banana for each son. If the total amount he invest is 7 pennies then how many he has bought from each item for his son?
Ans: c
a)1app,1cho,1 banana b)1 app,2cho,3 banana
c)1app,2cho,1banana d)2 app,2cho,2 banana.
A and B tanks are there. 1/8th of the tank B is filled in 22Hrs. What is time to fill the full tank?
Ans: 8*22 hrs.
5 friends went for week end party to Mc donalds restaurant and there, they measure their weights. Some irrelevant data. Final measure is 155 kg then find the average weight of 5 people?
Ans:155/5=31.
There are 7 friends (A1, A2, A3....A7). If A1 have to shake with all with out repeat. How many hands shakes possible?
Ans: 6.
If a person moves 15km straight and turns right and moves 45km again turns right and moves 15km straight then how much distance he needs to walk to reach starting point?
Ans: 45km.
If pqrstu implies qrstuv then abcdefg implies what?
Ans: bcdefgh.
If Atlantic is found in Atlantic ocean ,India is found in Indian ocean then which of the following cases are true……………(it depends on the options)
It is the class with the seating arrangement in 4 rows and 8 columns. When the teacher says 'start' the girl who is sitting in first row and first column will say 1, then the next girl sitting behind her will say 4, the next girl sitting behind that girl will say 7, in a particular order each girl is telling a number, the following girls told 10, 13 next turn is yours what u will say?
Ans: 16
In a particular city there are 100 homes numbered from 1,2,3………..100. The city was build by a builder from Chennai. There were 45 shops in the town which was build by a builder from Mumbai. The 2nd builder can build in ½ time as compared to 1st builder. If the 2nd builder builds in 15 days, then how many 2’s are used by the builder from Chennai in numbering the 100 homes?
a) 17 b) 18 c) 19 d) 20
Ans: d
Mr dash has 3 sons whose ages are respectively a,b,c. The grandfather has bought a cycle for the eldest son, mother has bought a bag for the youngest one which cost Rs: 150/. The sum of ages of the elder son & one son is 15. The difference of age of sons is 3 & 2. Then what is the age of the eldest son?
a) 10, b) 11, c) 12, d) 13.
Ans: b
We all know that Aryabhatta is the greatest mathematician belongs to India. When his daughter Mayabati was in her teen age he discovered a problem. At that time the age of Mayabati is a prime number, let that age is a. After some years her age becomes b. then Arya Bhatta was able to solve that problem with the help of he daughter Mayabati. If a-b=5 & product of a& b is 26 then what is the sum of two squares?
a) 77 b) 45 c) 89 d) 67.
Ans: a.
x/2y=2a, then 2x/y-2ay/x=?
Mr Behera wants to build a house for his wife. In this there are 5 rooms each having equal area. The length of each room is 4m, breadth is 5 m. the height of the rooms are 2m. If to make a sq. meter we need 17 bricks, then how many bricks are needed to make the floor of a particular room?
Ans: 4*5*17.
8 6 17 14 35 30 71 _ 143.
Ans: 62.
Two years before Paul’s age is 16 times the Alice age and the present age of Paul is 6times the Alice. What is the presents Paul’s age?
Ans: 18.
((509 * 509*509) – (229*229*229)/(( 509*509)+(509*229) + (229*229)) =?
A question like a wire is wound whose resistance is some 132.44647 ohms …..if a voltage of 30 mv ,296 mA current is applied to it what is the resistance ……
Clue: use formula R= V/I. beware of voltage& current particularly kilo or milli etc.. units.
One question on series like A B C D E F G H………….. ( CONSIDER VALUES IN PLACE OF ABCD’S) . FIND the next term.
Clue: take alter native terms in the series find their difference, now consider next alternative items and their difference is also same. Now add the difference to the corresponding series to get the last term.
find (31*31*31/44*44*44)*(87*87*87/56*56*56)
1,2,3,7,7,22,15,67,....
like this, then what no come immediately before 63?
answer = 202
explanation ;check alternate no.1,3,7,15=====>n*2+1
similarly 2,7,22,67=======>n*3+1
so series is 1,2,3,7,7,22,15,67,31,202,63........
Valentine day 14 Feb. 2005 was celebrated by Anand and shilpa on Monday. They were very happy. What day of the week would come on 14 Feb. 2010?
Ans: Sunday.
2X/5Y=5X/3Y...then what is x/y (There is some mistake in the problem.)
(Don’t remember the exact question but procedure was something like this)
.........................8th year--1/1024,, 9th year--1/512,, 10th year--1/256 then after how many years 1/32?
Ans: 13.
If a pipe can fill the tank within 6 hrs but due to leakage it took 30 min more time. Now if the tank was full how much time will it take to get emptied through the leak?
78 hrs.
Average weight of class of 15 students is 20 kg after adding weight of the teacher average weight of class becomes 22 kg then what is the weight of the teacher? 52kg.
2 very simple ques. on ages. Like if 3 yrs back I was 2 times of my friends age.....and so and so...if u know the basic concept you will be able to solve that.
Two simple ques. on averages like if initially the avg. weight of 6 students is 40...1 student joins the group then the new avg. becomes 42. What is the weight of new student?
Ans: 54
Persons A,B,C were there A always says truth, B lies on Monday, Tuesday,& Wednesday. But C lies on Thursday, Friday & Saturday. One day A said ”that B & C said to A that” B said “yesterday was one of the days when I lies”,C said that ”yesterday was one of the days when I lies too”. Then which day was that?
Series Problem like 4 12 8 26 16 56 32 x..? Find x
Ans is 120
because it is two series not a single one look at first series 4 8 16 32 .....n second one 12 26 56 x. Means 12 (12*2+2) (26*2+4) (56*2+8). Lots of questions may be on Fibonacci series so have a look at concept also.
20 men shake hands with each other. Maximum no of handshakes without cyclic handshakes.
Ans: 20c₂.
20 paper slips are there. All are numbered as such that n is b/w 1&20.
Eg: 5th paper slip will say 5 statements are wrong. Reasoning question (question is not clear).
1/6th of a no. is 4 less than 2/3 of a no. find no.
Ans: 8.
A jogger jogs@1/6th of his usual speed. How much % she has to increase his speed to reach her normal speed of walking.
Ans: 500%
The bacteria had a probability of splitting into three and a probability to die is one third of total bacteria. Let the probability be P. Some of them survived with probability 1/5. Then which among the following relations is true?
a) P=1/3+1/5*3
b) P=1/5*(1/8-3)……………
If a tank A can be filled within 10 hrs and 1/4th of tank B is filled in 19 hrs. Then what is the duration of the tank B to fill completely?
Ans: 4*19.
There was a grandmother in a village that had a grandchild. Upon asking her grandchild’s age she told that she is as older as many days old as her daughter’s age in weeks and as many days as her own age in years. The sum of the ages of three is 130. Then how old is the child?...............
Leena cut small cubes of 10 cubic cms each. Which she joined to form a cube with 10 cubes length, 5 cubes in depth and 5 cubes width. How many more small cubes does she require to form a perfect cube?
Ans: 10*10*10 -10*5*5.
The first two numbers are 1 and 2. Other numbers in the series are 3, 6,7,14, , 30? Which number comes before 30?
Ans: 15.
The ages of two people are in the ratio 6:8. The sum of their ages is 77. After how many years the ratio of their ages will be 4:5.
Ans: 9 years.
5, 9, 12, 18, 26, 36, 47, 72,--? Here odd terms have differences as multiples of 7 and even terms add with themselves to form the next number.
So answer is 75.
Lion tells lie on Monday, Tuesday, and Wednesday. Rat tells lie on Thursday, Friday and Saturday. Both of them speak truth on other days. Lion tells, “Yesterday was one of the days which I tell lying”. Rat also tells, “Yesterday was one of the days which I too tell lying”. What day was yesterday?
One person has no siblings and says,” the guy in the photo is the only son of my father ‘s son”. What is the relation of the guy to the person?
Ans: His son.
A lady builds 9cm length, 12cm width, and 3cm height box using 3cubic cm cubes. What is the minimum number of cubes required to build the box?
3*4*1 cubes require.
A person has to make 146 pieces of a long bar. He takes 4 seconds to cut a piece. What is the total time taken by him in seconds to make 146 pieces?
4*145 seconds.