Basic Notes for Coding and Decoding for upcoming Bank PO Exams

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

(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

(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

(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

(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

(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

(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

(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

(d) fperra

Example 9.

What is the code for 'RATION'?

(a) ensvba

(b) engvba

(d) engvca

Example 10.

What is the code for 'CREATOR'?

(a) prengbc

(b) persbgc

(d) pebryc

Example 11.

What is the code for 'AMERICAN'?

(a) nzrevpna

(b) nzrespna

(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 1^st word the letter N is repeated and so is the code a. Hence, for N, the code is a. Similarly, from the 2^nd word, the code for E is V. In 1^st and 6^th words the letter o is common and so is the code b. Hence, the code for o is b. In the 5^th 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

Code letter

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

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)