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We saw some major changes in the Pattern of Coding-Decoding questions last year. To help you all prepare for this, we are now going to share some Important Tips and Approach for Coding - Decoding Questions Based on New Pattern. We will also discuss some different patterns of Coding-Decoding questions that you may come across in this year’s bank exams.

Ex:1: In a certain code, TEACHER is written as a VGCEJGT. How is CHILDREN written in that code?

  • (a)EJKNEGTP 
  • (b) EGKNFITP 
  • (c) EJKNFGTO 
  • (d) EJKNFTGP
Sol. Clearly, each letter in the word TEACHER is moved two steps forward to obtain the corresponding letter of the code.
     T                 E                      A                     C                      H                     E                      R
+2 ↓            +2↓                  +2↓                  +2↓                  +2↓                  +2↓                 +2↓
    V                 G                     C                      E                      J                       G                     T
Similarly, we have:
   C             H              I               L               D                   R                            E                    N 
+2↓          +2↓          +2↓         +2↓             +2↓              +2↓                          +2↓                  +2↓
   E              J               K             N              F                    T                             G                    P
So, the desired code is EJKNFTGP. Hence the answer is(d).

Ex:2: In a certain system of coding, the word STATMEN is written as TNEMETATS. In the same system of coding, what should be the code for the word POLITICAL?

  • (a) LACITILOP                       
  • (b) LCATILIOP                       
  • (c) OPILITACL                        
  • (d) None
Sol: Clearly, the letters of the given word as written in a reverse order to obtain the code. Reversing the order of letters in POLITICL, we get LACITILOP, which is the required code.

Ex.3: If in a code language, PARENT is written as BDFGJK and CHILDREN is written as MOXQUFGJ, how is REPRINT written in that code?

  • (a) FGBFXJK               
  • (b) FGBUXJK              
  • (c) FGBFXGD             
  • (d) BGBFXJK

Sol: Observing the given the given words and codes, we notice that
There is no apparent rule governing the coding;
Both the given words have common codes corresponding to common letters i.e. PARENT and CHILDREN have REN in common in the word and FGJ in common in the code. This indicates that the code letters are in the same sequences as the corresponding letters in the words.
REPRINT is formed by a combination of letters of PARENT and CHILDREN.


All the above three indicate that this is a question on direct coding.

Thus from the given words we have : 

Letter
P
A
R
E
N
T
C
H
I
L
D
Codes
B
D
F
G
J
K
M
O
X
Q
U

Thus, the code for REPRINT becomes FGBFXJK. Hence the answer is (a).

Ex.4. If E=5, PEN=35, then PAGE=?

  • (a) 27               
  • (b) 28               
  • (c) 29               
  • (d) 36.
Sol. Clearly putting A=1, B=2, C=3, D=4, E=5,…….., M=13……., X=24, Y=25, Z=26, we have
PEN= P+E+N=16+5+14=35
So, PAGE=P+A+G+E=16+1+7+5=29.
Hence, the answer is (29).

Ex 5. If cook is called ‘Butler’, ‘butler’ is called ‘manager’, ‘manager’ is called ‘teacher’,’teacher’ is called ‘clerk’ and ‘clerk’ is called ‘principal’, who will teach in a class?

  • (a) cook           
  • (b) Butler         
  • (c) Manager    
  • (d) Teacher      
  • (e) Clerk.
Sol: Clearly, a ‘teacher’ teaches in a class and as given, ’teacher’ is called ‘clerk’. So, a ‘clerk’ will teaches in a class. Hence the answer is (e).

Ex.6 In a certain language, “sun shines brightly” is written as ba lo sul”, ”houses are brightly lit’ as ‘kado ula ari ba’ and lights comes from sun as ‘dopi kup lo nro’. What code words are written for ‘sun’ and ‘brightly’?


Sol: In the first and third statements, the common word is sun and the common code word is lo. So, lo is the code for sun.
In the first and second statements, the common word is brightly and the common code word is ba. So, is code word for brightly. .

Ex.7: In a certain code language 123 means bright little boy, 145 means tall big boy and 637 means beautiful little flower. Which digit in that language means ‘bright’?

  • (a) 1    
  • (b) 2    
  • (c) 3    
  • (d) 4

Sol: In the first and second statements, the common code digit is 1 and the common word is boy. So  means boy. In the first and third statements, the common code digit is 3 and the common word is little. So, 3 means little. Thus, in the first statement, 2 means bright. Hence the answer is (b).

All the Best for your Upcoming Exams.
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