7. Coding - Decoding | Sakshi Education

Sakshi Education

Introduction
Coding is a secretive language which is used to change the representation of the actual term / word / value. This coded language can be framed by
(i) moving the letters one or more steps forward or backward;
(ii) substituting numbers for letters and vice-versa;
(iii) writing the letters of the given word in reverse order in part or in whole; and
(iv) replacing the letters in their natural series by the same positioned letters in their reverse series.

Alphabets in natural series are:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Alphabets in reverse series are:
Z Y X W V U T S R Q P O N M L K J I H G F E D C B A
There is variety in ways of coding. Coding language is not only for words and numbers but also for hiding a group of words, statements or even sentences. This form of coding pattern may appear to be confusing but after solving only a few questions it is very easy to understand. Questions based on this coding pattern require no moving of steps or straining efforts of calculations, but only quick tallying or comparing ability. The codes can be letters or numbers.
In yet another manner of coding particular words are assigned code names which are further coded. The questions on this pattern may appear meaningless but the codes must not be confused with the basic properties of reality.
Coding-Decoding can be really easy and simplified if one has to tally the given codes. In this type of coding, the Digits and its coded Letters or vice versa are already given. One has to find out the answers to the given questions just by tallying the given codes.
In this type of coding, the capital letters A to Z are coded by using the small letters a to z. With the help of the coding pattern, one has to find the right code from the columns which has equivalent to the group of capital letters.

EXERCISE

In a certain code, PRODUCTION is written as NOITCUDORP. How is CREATION written in that code?
(a) AERCNOTI
(b) NOITAERC
(c) RCAEITNO
(d) CETONIAR
(e) None of these
In a certain language code BREAK is written as ASDBJ. How is SOLAR written in that code?
(a) RPKBS
(b) TPMBS
(c) RPKBQ
(d) TPKBQ
(e) None of these
In a certain code CAT is written as SATC and DEAR is written as SEARD. How would SING be written in that code?
(a) GNISS
(b) SINGS
(c) SGNIS
(d) BGINS
(e) None of these
In a certain code ‘GROWTH’ is written as ‘HQPVUG’ and ‘FOUR’, is written as ‘GNVQ’. How is ‘PROBLEMS’ written in that code?
(a) OQPAMDNR
(b) QQNCMDNR
(c) QQPAKDNR
(d) QQPAMDNR
(e) None of these
In a certain code language ‘STRONGER’ is written as TSSNOFFQ. How will the word ‘FREEDOM’ be written in that language?
(a) QGFDENN
(b) DENNFQG
(c) GQFDENN
(d) FDEGNQN
(e) None of these
In a certain code language BEAT is written as YVZG, then what will be the code of MILD?
(a) ONRW
(b) NOWR
(c) ONWR
(d) NROW
(e) None of these
In a certain code, STOVE is written as FNBLK, then how will VOTES be written in the same code?
(a) FLKBN
(b) LBNKF
(c) LKNB
(d) LNBKF
(e) None of these
In a certain code PATHOLOGIST is written as PIUBQKSRHFN.
How is CONTROVERSY written in that code?
a) SUOPDNXRQDU
b) SUOPDNZISFW
c)QSMNBPXRQDU
d) QSMNBPZTSFW
e) None of these
In a certain code language BANKER is written as ‘LFSCBO’, how will CONFER be written in that code?
(a) GFSDPO
(b) FGSDOP
(c) GFSEPO
(d) FHSDPO
(e) None
In a certain code ORGANISE is written as BHSPDRHM. How is DOUBTFUL written in that code?
(a) CVPEKTES
(b) CVPIMVGU
(c) ATNCKTES
(d) ATNCMVGU
(e) None of these
If CANTEEN is coded as 6 and ACCIDENT as 7, then what is the code for MATHEMATICS?
(a) 6
(b) 8
(c) 9
(d) 10
(e) 12
12. XEROX 24 – 5 – 18 – 15 – 24 :: ZEBRA ?
(a) 2612518
(b) 2181265
(c) 1812526
(d) 2652181
(e) None of these
In a certain code ‘go home’ is written as ‘ta na’ and ‘nice little home’ is written as ‘na ja pa’. How is ‘go’ written in that code?
(a) ta
(b) na
(c) ja
(d) na or ta
(e) None of these

Directions (Questions 14 and 15): In a certain code letters of English alphabet (consonants and vowels) are coded as given for some words below. The numeric code for each letter is given in bracket under coded form and corresponds to the letter in the word in the same serial order. Study the coded forms of the given words and find out the rules for their codification. Applying those rules, answer the questions that follow.
Word Coded form
SEAT [5] [15] [15] [15]
CUT [5] [10] [15]
ONE [0] [5] [0]
DEEP [5] [20] [20] [5]
POUR [5] [15] [15] [15]
PIN [5] [10] [5]
NONE [5] [[25] [5] [25]
BOOK [5] [20] [20] [5]
OPEN [30] [5] [30] [5]
ATE [0] [5] [0]
PAGE [5] [25] [5] [25]
UNIT [30] [5] [30] [5]
DOSE
(a) [5] [15] [5] [15]
(b) [5] [10] [5] [10]
(c) [5] [30] [5] [30]
(d) [5] [0] [5] [15]
(e) None of these
DATA
(a) [5] [30] [5] [30]
(b) [5] [25] [5] [25]
(c) [5] [15] [5] [15]
(d) [5] [10] [5] [10]
(e) None of these
If ‘blue’ means ‘green’, ‘green’ means ‘white’, ‘white’ means ‘yellow’, ‘yellow’ means ‘black’, ‘black’ means ‘red’ and ‘red’ means ‘brown’, then what is the color of milk?
(a) Black
(b) Brown
(c) Blue
(d) Yellow
(e) Green
If white is called ‘blue’, ‘blue’ is called ‘red’, ‘red’ is called ‘yellow’, ‘yellow’ is called ‘green’, ‘green’ is called ‘black’, ‘black’ is called ‘violet’ and ‘violet’ is called ‘orange’, what would be the color of human blood?
(a) Red
(b) Green
(c) Yellow
(d) Violet
(e) Orange
If in a certain code language, INDIA is written as 67165 and TAMIL is written as 85263, how is MIND in that code?
a) 3671
b) 2671
c) 5671
d) 1762
e) 1763
In a certain code, BRAIN is written as *%÷#× and TIER is written as $#+%. How is RENT written in that code?
(a) %×#$
(b) %#×$
(c) %+×$
(d) +×%$
(e) None of these

In a certain code language ‘DOME ’is written as ‘8943’ and ‘MEAL’ is written as ‘4321’. What group of letters can be formed for the code ‘38249’?
(a) EOADM
(b) MEDOA
(c) EMDAO
(d) EDAMO
(e) MEAOD

Directions (Questions 21 to 22): Read the following table and conditions and answer the questions carefully.

Digit	2	5	7	8	9	4	6	3	1
Letter coder	M	R	T	B	W	K	D	N	J

Conditions:
(i) If both the first and last digits of the number are odd digits, then both are to be coded as I.
(ii) If both the first and last digits of number are even digits then both are to be coded as Y.

726395
(a) IMDNWI
(b) YMDNWY
(c) TMDNWR
(d) IMDNWR
(e) None of these

615824
(a) IJRBMI
(b) IJRBMY
(c) YJRBMY
(d) DJRBMK
(e) None of these

Directions (23-28): In each question below is given a group of letters followed by four combinations of digits /symbols numbered (a),(b) (c), and (d). You have to find out which of the combinations correctly represents the group of letters based on the following digits/symbol coding system and the conditions those follow and mark the number of that combination as the answer. If none of the combinations correctly represents the group of letters mark (e) i.e. ‘None of these’ as the answers.

Letter

Digit

Conditions:
(i) If the first letter is a consonant and the last letter is a vowel the codes are to be interchanged.
(ii) If the first letter is a vowel and the last letter is a consonant both are to be coded as the code for the vowel.
(iii) If both the first and the last letters are consonants both are to be coded as the code for the last letter.

MKJIDE
a) 9%1#7$
b) $%1#79
c) 9l%#7$
d) $%17#9
e) None of these
INQBWU
a) #@8 *3
b) 3@8 *#
c) #8@* 3
d) 3#@8 *
e) None of these
KFBPAW
a) *2 65%
b) %2 65%
c) *2 65*
d) %2 65*
e) None of these
EFDJTP
a) 62714$
b) $27146
c) $27416
d) $2714$
e) None of these
NWANUD
a) @*5@37
b) 7*5@3@
c) @5*@37
d) @*5@3@
e) None of these
APFTQI
a) #62485
b) #6248#
c) 562485
d) 56248#
e) None of these
In a certain code if LOUD is written as JQSF then which of the following English words shall be coded as PKQG?
a) NMOI
b) ROPE
c) ROAD
d) RICE
e) ROLE

In a certain code JUST is written as # %$ and LATE is written as $*. How is TASTE written in that code?
a) *

% $*
b) $

%$*
c) $

%*$
d) $%

%*
e) None of these

Directions (31-35): In each question below is given a group of letters followed by four combinations of digits/symbols numbered (a), (b), (c) and (d). You have to find out which of the combinations correctly represents the group of letters based on the following coding system and the conditions that follow and mark the number of that combination as your answer. If none of the combinations correctly represents the group of letters, mark (e) i.e. ‘None of these’ as your answer.

Letter/Digit

Symbol/Code

Conditions:
(i) If the first and the second letters are consonants, both are to be coded as the code for the second letter.
(ii) If the first and the third letters are vowels, both are to be coded as the code for the first letter.
(iii) If the first letter is a vowel and the last letter is a consonant, both are to be coded as #.

JREMQI
a) **296$
b) %*296$
c) %2*96$
d) %%296$
e) None of these
UBHMED
a) @7 924
b) #7 92#
c) 77 924
d) @@ 924
e) None of these
AKEJPI
a) 123%8$
b) 132%8$
c) 131%8$
d) 113%8$
e) None of these
FURIJK
a) @ $%3
b) @@*$%3
c) 3%$*@5
d) @*$%3
e) None of these
QMIAWE
a) 99$152
b) 69$152
c) #9$15#
d) 69$156
e) None of these

Directions (36-40): Study the following information to answer the given questions: In a certain code "new banking systems” is coded as “ss tp na", “officer in uniform” is coded as “or mu at”, “new bank officer” is coded as ”or bk na” and “systems in bank” is coded as “bk at ss".
What does the code "bk" stands for?
a) new
b) systems
c) officer
d) in
e) None of these
What will the code "ss mu” stand for?
a) Banking officer
b) new uniform
c) uniform banking
d) in systems
e) uniform systems
How will "new officer” be coded?
a) or na
b) tp na
c) na at
d) tp or
e) ss at
How will "bank officer in uniform" be coded ?
a) ss na at or
b) bk at or mu
c) ss na bk at
d) at mu ss or
e) bk ss mu na
What is the code in “in”?
a) ss
b) or
c) at
d) mu
e) None of these

Directions (41-45): Study the information and answer the following questions: In a certain code language —
‘Economics is not money' is written as, ‘ka la ho ga’, ‘Demand and supply economics’ is written as, 'mo ta pa ka’, ‘Money makes only part' is written as, ‘zi la ne ki', ‘Demand makes supply economics’ is written as, ‘zi mo ka ta'
What is the code for “money” in the given code language?
a) ga
b) mo
c) pa
d)ta
e) la
What is the code for “supply" in the given code language?
a) only ta
b) only mo
c) either pa or mo
d) only pa
e) either mo or ta
What may be the possible code for “demand only more” in the given code language?
a) xi ne mo
b) mo zi ne
c) ki ne mo
d) mo zi ki
e) xi ka ta
What may be the possible code for ‘work and money’ in the given code language?
a) pa ga la
b) pa la tu
c) mo la pa
d) tu la ga
e) pa la ne
What is the code for ‘makes’ in the given code language?
a) mo
b) pa
c) ne
d) zi
e) ho

Directions (46 – 50) Study the following information carefully and answer the given questions.
In a certain code ‘318’ means ‘run very fast’,
‘289’ means ‘to run away’,
‘97’ means ‘to see’ and
‘43’ means ‘very good’.
What is the code for ‘see’?
a) 3
b) 7
c) 4
d) 9
e) None of these
Which of the following represents ‘see good run away’?
a) 8472
b) 7914
c) 7319
d) 3289
e) None of these
What is the code for ‘run’?
a) 3
b) 8
c) 1
d) 9
e) None of these
Which of the following may represent, ‘good to see away’?
a) 7485
b) 3149
c) 5439
d) 2479
e) None of these
What does ‘4’ represent in this code?
a) Very
b) fast
c) run
d) good
e) None of these

ANSWERS
1	b	11	d	21	a	31	a	41	e
2	c	12	d	22	c	32	b	42	e
3	b	13	a	23	b	33	c	43	a
4	d	14	e	24	a	34	d	44	b
5	c	15	b	25	c	35	a	45	d
6	d	16	e	26	d	36	e	46	b
7	b	17	c	27	e	37	e	47	a
8	a	18	b	28	d	38	a	48	b
9	a	19	c	29	a	39	b	49	d
10	a	20	d	30	b	40	c	50	d