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Coding- Decoding - 3(Hard) Free MCQ Practice Test with solutions, Bank


MCQ Practice Test & Solutions: MCQ: Coding- Decoding - 3(Hard) (15 Questions)

You can prepare effectively for Bank Exams with this dedicated MCQ Practice Test (available with solutions) on the important topic of "MCQ: Coding- Decoding - 3(Hard)". These 15 questions have been designed by the experts with the latest curriculum of Bank Exams 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 15 minutes
  • - Number of Questions: 15

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MCQ: Coding- Decoding - 3(Hard) - Question 1
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If 16 - 2 = 2, 9 - 3 = 0, 81 - 1 = 8, then what is 64 - 4 ?

Detailed Solution: Question 1

16 ⇒ (2 + 2)2 = 42
9 ⇒ (3 + 0)2 = 32
∴ 64 ⇒ (4 + 4)2 = 82

MCQ: Coding- Decoding - 3(Hard) - Question 2
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If PKROK is coded as 72962 and KRRPK as 29972 then how can NJMLZ be coded ?

Detailed Solution: Question 2

Given word,
P K R O K
Place value : 16 11 18 15 11   
add digit of these number 1+6=7 1+1 =2 1+8 =9 1+5=6 1+1=2
Code (Sum) : 7 2 9 6 2
Similary,
word N J M L Z
Place value : 14 10 13 12 26
code (Sum) : 5 1 4 3 8

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MCQ: Coding- Decoding - 3(Hard) - Question 3
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If 'GLOSSORY' is coded as 97533562 and GEOGRAPHY' = 915968402, then 'GEOLOGY' can be coded as

Detailed Solution: Question 3

For GLOSSORY = 97533562:

  • G → 9
  • L → 7
  • O → 5
  • S → 3
  • S → 3
  • O → 5
  • R → 6
  • Y → 2

For GEOGRAPHY = 915968402:

  • G → 9
  • E → 1
  • O → 5
  • G → 9
  • R → 6
  • A → 8
  • P → 4
  • H → 0
  • Y → 2

Now, for GEOLOGY:

  • G → 9
  • E → 1
  • O → 5
  • L → 7
  • O → 5
  • G → 9
  • Y → 2

Thus, the code for GEOLOGY is:

9157592

MCQ: Coding- Decoding - 3(Hard) - Question 4
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In a certain code language NATIONALISM is written as OINTANMSAIL. How is DEPARTMENTS written in that code?

Detailed Solution: Question 4

Divide the word into two groups of five letters each. The first five letters are in group I and the last five letters are in group II. Now, for its coding the middle letters remain unchanged. While the letters in each group change their position as 1 → 3, 2 → 5, 3 → 4, 4 → 2 and 5 → 1.

MCQ: Coding- Decoding - 3(Hard) - Question 5
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If αδγηε is coded as ‘ARGUE’ and σφλπε is SOLVE, What is παγηελω is ?

Detailed Solution: Question 5

  1. α→A, δ→R, γ→G, η→U, ε→E

  2. σ→S, φ→O, λ→L, π→V, ε→E

  3. ω→Y (to complete VAGUELY)

παγηελω → π‑α‑γ‑η‑ε‑λ‑ω → V‑A‑G‑U‑E‑L‑Y = VAGUELY (a)

MCQ: Coding- Decoding - 3(Hard) - Question 6
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If the first and second letters in the word ‘COMMUNICATIONS’ were interchanged, also the 3rd and the 4th letters, the 5th and 6th letters and so on, which letter would be the 10th letter counting from your right?

Detailed Solution: Question 6

we can write the given word COMMUNICATIONS as -
C → 1
O → 2
M → 3
M → 4
U → 5
N → 6
I → 7
C → 8
A → 9
T → 10
I → 11
O → 12
N → 13
S → 14
After rearrangement , The letter N will be the tenth letter counting from right .

MCQ: Coding- Decoding - 3(Hard) - Question 7
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Using the following code and key, decode the given coded word:
Code : L X P Z J Y Q M N B
...Key : b a e s p r h i g t
Coded word : Z B Y X M N Q B

Detailed Solution: Question 7

According to given question,
L → b , X → a , P → e , Z → s , J → p , Y → r , Q → h , M → i , N → g , B → t
Replace the each capital from given relationship for Z B Y X M N Q B , We will get
Z → s
B → t
Y → r
X → a
M → i
N → g
Q → h
B → t

MCQ: Coding- Decoding - 3(Hard) - Question 8
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In a code language the following alphabets are coded in a particular way:
A → @
C → #
D → $
E → %
G → =
H → ^
K → &
L → *
M → α
N → β
O → γ
S → δ
Which word can be decoded from the following?
^ γ α @ =%

Detailed Solution: Question 8

According to given question,
A → @ , C → # , D → $ , E → % , G → = , H → ^ , K → & , L → * , M → α , N → β , O → γ , S → δ
Replace the each capital from given relationship for ^ γ α @ =%, We will get
^ → H
γ → O
α → M
@ → A
=→ G
% → E
Hence , the required answer will be HOMAGE.

MCQ: Coding- Decoding - 3(Hard) - Question 9
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If @ # $ % & is decoded as ARGUE and α β γ δ & is SOLVE, what is δ @ $% &γ ∠ ?

Detailed Solution: Question 9

According to given question,
@ → A
# → R
$ → G
% → U
& → E
and,
α → S
β → O
γ → L
δ → V
& → E
Replace the each capital from given relationship for δ @ $% &γ ∠, We will get
δ → V
@ → A
$ → G
% → U
& → E
γ → L
∠ → Y
Hence , the required answer will be VAGUELY .

MCQ: Coding- Decoding - 3(Hard) - Question 10
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If ‘PENCIL’ is coded as ? @, =; 7 and ‘PAPER’ is coded as ? 9 ? @ 5 how will you code 'CLIP'?

Detailed Solution: Question 10

According to given question,
? → P
@ → E
, → N
= → C
; → I
7 → L
and,
? → P
9 → A
? → P
@ → E
5 → R
Replace the each capital from given relationship for CLIP , We will get
= → C
7 → L
; → I
? → P
Hence , the required answer will be = 7 ; ?.

MCQ: Coding- Decoding - 3(Hard) - Question 11
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Direction: Given below are letters A to Z. Under each capital letter a small letter is written which is to be used as a code for the capital letter.
With the help of the given codes (small letters) select the equivalent capital letters for the following :

efsogc

Detailed Solution: Question 11

As per the above given table, We can replace the each capital from given relationship for efsogc, We will get
e → L
f → A
s → Y
o → B
g → K
c → V
Hence , the required answer will be LAYBKV.

MCQ: Coding- Decoding - 3(Hard) - Question 12
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Direction: Given below are letters A to Z. Under each capital letter a small letter is written which is to be used as a code for the capital letter.
With the help of the given codes (small letters) select the equivalent capital letters for the following :

gulphb

Detailed Solution: Question 12

As per the above given table, We can replace the each capital from given relationship for gulphb, We will get
g → K
u → N
l → D
p → U

h → W
b → G

Hence , the required answer will be KNDUWG.

MCQ: Coding- Decoding - 3(Hard) - Question 13
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Direction: Below are given letters A to Z. Under each capital letter a small letter is written which is to be used as a code for the capital letters.
In each of the following questions a group of six capital letters is given and its code, equivalent is given in one of the columns (1), (2), (3) or (4). Study the group of letters given in each question and with the help of code given above, choose the code equivalent from among (1), (2), (3) or (4) as your answer.
(A) dgrtmo, tszlxm, buvrst, dgtrlo, bumlfo, dgrlwx
(B) bumtso, dgretq, tzsqxy, bumrst, tzsgrp, dgrwxy
(C) dgrsto, fzslxm, dgrpst, bumvho, tzphxo, bumgrs
(D) umyro, dgrers, fzsacx, burady, tzslxm, bvmyst

JGRIOX

Detailed Solution: Question 13

As per the above given table, We can replace the each capital from given relationship for JGRIOX , We will get
J → b
G → u
R → m
I → v
O → h
X → o
Hence , the required answer is bumvho.

MCQ: Coding- Decoding - 3(Hard) - Question 14
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Direction: Below are given letters A to Z. Under each capital letter a small letter is written which is to be used as a code for the capital letters.
In each of the following questions a group of six capital letters is given and its code, equivalent is given in one of the columns (1), (2), (3) or (4). Study the group of letters given in each question and with the help of code given above, choose the code equivalent from among (1), (2), (3) or (4) as your answer.
(A) dgrtmo, tszlxm, buvrst, dgtrlo, bumlfo, dgrlwx
(B) bumtso, dgretq, tzsqxy, bumrst, tzsgrp, dgrwxy
(C) dgrsto, fzslxm, dgrpst, bumvho, tzphxo, bumgrs
(D) umyro, dgrers, fzsacx, burady, tzslxm, bvmyst

THLPQZ

Detailed Solution: Question 14

As per the above given table, We can replace the each capital from given relationship for THLPQZ , We will get
T → d
H → g
L → r
P → e
Q → t
Z → q
Hence , the required answer will be dgretq.

MCQ: Coding- Decoding - 3(Hard) - Question 15
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Direction: Below are given letters A to Z. Under each capital letter a small letter is written which is to be used as a code for the capital letters.
In each of the following questions a group of six capital letters is given and its code, equivalent is given in one of the columns (1), (2), (3) or (4). Study the group of letters given in each question and with the help of code given above, choose the code equivalent from among (1), (2), (3) or (4) as your answer.
(A) dgrtmo, tszlxm, buvrst, dgtrlo, bumlfo, dgrlwx
(B) bumtso, dgretq, tzsqxy, bumrst, tzsgrp, dgrwxy
(C) dgrsto, fzslxm, dgrpst, bumvho, tzphxo, bumgrs
(D) umyro, dgrers, fzsacx, burady, tzslxm, bvmyst

WSNUDR

Detailed Solution: Question 15

As per the above given table, We can replace the each capital from given relationship for WSNUDR, We will get
W → f
S → z
N → s
U → l
D →x
R → m
Hence , the required answer will be fzslxm.

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