CODING AND DECODING
Before
looking at the different types of questions and some of the codes that can be
used with the help of examples, let us first understand what we mean by coding
and decoding. When we say coding, a particular code or pattern is used to
express a word in English language as a different word or in a different form.
The coded word itself does not make any sense unless we know the pattern or
code that has been followed. Decoding refers to the process of arriving at the
equivalent English word from the code word given.
In
the questions, a particular code is given and on the basis of this given code,
we have to find out how another word (in English language) can be coded. The
correct code for the given word has to be selected from the answer choices on
the basis of the code given in the question.
Worked out examples :
Example 1.
In a
certain code language, if the word 'PARTNER' is coded as OZQSMDQ, then what is
the code for the word 'SEGMENT' in that language?
(a) TFHNFOU
(b) RDFLDMS
(c) RDELDMS
(d) RDFEDNS
Solution.
Word : P A R T N E R
Logic : – 1 – 1 – 1 – 1 – 1 – 1 – 1
Code : O Z Q S M D Q
Similarly the code for SEGMENT is
Word : S E G M E N T
Logic : – 1 – 1 – 1 – 1 – 1 – 1 – 1
Code : R D F L D M S
Choice (b)
Example 2.
In a certain code language, if the word RECTANGLE' is
coded as TGEVCPING, then how is the
word 'RHOMBUS' coded in that language?
(a) TJOQDWV
(b) TJQNDWU
(c) TJQODWU
(d) TJQOEWU
Solution.
Word : REC TANGLE
Logic : +2 +2 +2 +2 +2 +2 +2 +2 +2
Code : T G E V C P I N G
Similarly, the code for RHOMBUS is
Word : R H O M B U S
Logic : +2 +2 +2 +2 +2 +2 +2
Code : T J Q O D W U
Choice (c)
Example 3.
In a certain code language, if the word 'SPHERE' is coded
as EREHPS, then how is the word
'EXHIBITION' coded in that language?
(a) NOTITBIHXE
(b) NOITIDIHXE
(c) NOITIBIHWE
(d) NOITIBIHXE
Solution.
Word : S P H E R E
Logic : The letters in the given word are reversed.
Code : E R E H P S
Similarly, the code for EXHIBITION, is
Word : E X H I B I T I O N
Logic : The letters in the given word are reversed.
Code : N O I T I B I H X E
Choice (d)
Example 4.
In a certain code language, if the word 'REJECTION' is
coded as SGMIHZPWW, then how is
the word 'MECHANIC coded in that language?
(a) NGFLFTPK
(b) NGPLFTPK
(c) NGFKFTPK
(d) NGPTPKIL
Solution.
Word : REJECTION
Logic : +1+2+3 +4 +5 +6 +7 +8 +9
Code : S G M I H Z P W W
Similarly, the code for MECHANIC is
Word : M E C H A N I C
Logic : +1+2+3 +4 +5 +6 +7 +8
Code : N G F L F T P K
Choice (a)
Example 5.
In a certain code language, if the word 'PLAYER* is coded
as AELPRY, then how is the word
'MANAGER' coded in that language?
(a) AEAGMNR
(b) AAGEMNR
(c) AAEGMNR
(d) AAEGNMR
Solution.
Word : P L A Y E R
Logic : The letters in the word are arranged in the
increasing order of their value as in the
alphabet.
Code : A E L P R Y
Similarly, the code for MANAGER is AAEGMNR.
Choice (c)
Example 6.
In a certain code language, if the number 1 is assigned
to all the letters in odd numbered places
in the alphabet and the remaining letters are assigned
the number 2, then what is the code for
the word 'INDIAN'?
(a) 121212
(b) 111222
(c) 112212
(d) 122112
Solution.
The code for the word INDIAN is 122112. .
Choice (d)
Example 7.
In a certain code language, if CRICKET is coded as
3923564, ROCKET is coded as 913564
and KETTLE is coded as 564406, then how is LITTLE coded
in that language?
(a) 244060
(b) 024406
(c) 020446
(d) 200446
Solution.
As we observe that the letters and their corresponding
codes are given in order i.e., the code for .
C is 3, R is 9, I is 2 and so on. Hence, the code for
LITTLE is 024406.
Choice (b)
Directions for questions 8 to 11 : In a certain code language, the codes
for some words are as
follow.
NATION– agvnab
REMOTE– rzgrbe
STAIR– efgnv
FORMAL– bensyz
COMMON– zabzpb
FOR– ebs
Based on the above coding pattern answer the following
questions.
Example 8.
What is the code for 'SCREEN'?
(a) fepcra
(b) fpersa
(c) fpreba
(d) fperra
Example 9.
What is the code for 'RATION'?
(a) ensvba
(b) engvba
(c) engrba
(d) engvca
Example 10.
What is the code for 'CREATOR'?
(a) prengbc
(b) persbgc
(c) perngbe
(d) pebryc
Example 11.
What is the code for 'AMERICAN'?
(a) nzrevpna
(b) nzrespna
(c) nzlespna
(d) nzreqpna
Solutions for questions 8 to 11 :
The given words and their codes are as follow
(1) NATION – agvnab
(2) REMOTE – rzgrbi
(3) STAIR– efgnv
(4) FORMAL – bensyz
(5) COMMON – zabzpb
(6) FOR– ebs
In
the 1st word the letter N is repeated and so is the code a. Hence,
for N, the code is a. Similarly, from the 2nd word, the code for E
is V. In 1st and 6th words the letter o is common and so
is the code b. Hence, the code for o is b. In the 5th word the
letter m is repeated and so is the code z. Hence, the code for m is z.
Similarly the codes for the remaining letters can be determined.
The letters and their respective codes are as follows
|
Letter
|
A
|
C
|
E
|
F
|
I
|
L
|
M
|
N
|
0
|
R
|
S
|
T
|
|
Code letter
|
n
|
P
|
R
|
s
|
V
|
y
|
z
|
a
|
b
|
e
|
f
|
G
|
Solution 8.
The code for 'SCREEN' is fperra. .
Choice (d)
Solution 9.
The code for 'RATION' is engvba. .
Choice (b)
Solution 10.
The code for 'CREATOR' is perngbe. .
Choice (c)
Solution 11.
The code for 'AMERICAN' is nzrevpna. .
Choice (a)
Example 12.
In a certain code if white is called as black, black as
yellow, yellow as blue, blue as red, red as green, green as purple, then what
is the colour of blood in that language?
(a) Red (b)
Green
(c) Yellow (d)
Purple
Solution.
The colour of blood is red and in this code Red is called
Green. Hence, blood is green in colour .
in that language.
Choice (b)
