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CAT Exam  >  CAT Test  >  Level-wise Tests  >  Test Level 2: Coding Decoding - CAT MCQ

Test Level 2: Coding Decoding CAT MCQs & solutions - Free


MCQ Practice Test & Solutions: Test Level 2: Coding Decoding (20 Questions)

You can prepare effectively for CAT Level-wise Tests for CAT with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test Level 2: Coding Decoding". These 20 questions have been designed by the experts with the latest curriculum of CAT 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 40 minutes
  • - Number of Questions: 20

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Test Level 2: Coding Decoding - Question 1
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How will 'Incredible' be coded as according to this code language?

Detailed Solution: Question 1

Each given code comprises three different elements – a number, a symbol and a letter; where-
(1) The number is the reverse numeric value for the first letter of the word.
(2) For the second element, a unique symbol is chosen for the last letter of the word. To exemplify, the word 'All' has L as its last letter; and therefore, for L, ! is its second element in the code.
(3) The last element comprises the letter which is third to the right(in English Alphabet) of the last letter of the word. For example, in the word 'All', L is the last letter; so third to the right of L is O.
As per this logic, the words and their specific codes are as given below:
 

Following the logic, the code for 'Incredible' will be 18#H.

Test Level 2: Coding Decoding - Question 2
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How will 'Colour' be coded as according to this code language?

Detailed Solution: Question 2

Each given code comprises three different elements – a number, a symbol and a letter; where-
(1) The number is the reverse numeric value for the first letter of the word.
(2) For the second element, a unique symbol is chosen for the last letter of the word. To exemplify, the word 'All' has L as its last letter; and therefore, for L, ! is its second element in the code.
(3) The last element comprises the letter which is third to the right(in English Alphabet) of the last letter of the word. For example, in the word 'All', L is the last letter; so third to the right of L is O.
As per this logic, the words and their specific codes are as given below:
 

Following the logic, the code for 'Colour' will be 24%U.

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Test Level 2: Coding Decoding - Question 3
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How will 'Colour' be coded as according to this code language?

Detailed Solution: Question 3

Each given code comprises three different elements – a number, a symbol and a letter; where-
(1) The number is the reverse numeric value for the first letter of the word.
(2) For the second element, a unique symbol is chosen for the last letter of the word. To exemplify, the word 'All' has L as its last letter; and therefore, for L, ! is its second element in the code.
(3) The last element comprises the letter which is third to the right(in English Alphabet) of the last letter of the word. For example, in the word 'All', L is the last letter; so third to the right of L is O.
As per this logic, the words and their specific codes are as given below:
 

Following the logic, the code for 'Amazed' will be 26@G.

Test Level 2: Coding Decoding - Question 4
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How will 'Danger' be coded as according to this code language?

Detailed Solution: Question 4

Each given code comprises three different elements – a number, a symbol and a letter; where-
(1) The number is the reverse numeric value for the first letter of the word.
(2) For the second element, a unique symbol is chosen for the last letter of the word. To exemplify, the word 'All' has L as its last letter; and therefore, for L, ! is its second element in the code.
(3) The last element comprises the letter which is third to the right(in English Alphabet) of the last letter of the word. For example, in the word 'All', L is the last letter; so third to the right of L is O.
As per this logic, the words and their specific codes are as given below:
 

Following the logic, the code for 'Danger' will be 23%U.

Test Level 2: Coding Decoding - Question 5
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Directions: This question is based on five words given below.

AWAY TAKE GRAT PISS DEAL

(Note: The word formed after performing the given operations may or may not be a meaningful English word)

If the given words are arranged in the order as they would appear in the English dictionary from left to right, then which of the following will be the second from the right?

Detailed Solution: Question 5

The arrangement will be as follows.

AWAY DEAL GRAT PISS TAKE

So, the answer is PISS.

Test Level 2: Coding Decoding - Question 6
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Directions: This question is based on five words given below.

SIR DEV GOT MIC SAT

(Note: The word formed after performing the given operations may or may not be a meaningful English word)

If the third alphabet in each of the words is exchanged with the first alphabet within the word and middle letter of all the words is changed to the next letter in the English alphabetical series, then how many words thus formed will not have a consonant at both third and second places?

Detailed Solution: Question 6

The arrangement will be as follows.
RJS VFD TPG CJM TBS

All of them have consonants at both second place and third place.

Test Level 2: Coding Decoding - Question 7
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PTUWT

Detailed Solution: Question 7

Both first and last letters are consonants, so it should follow condition (i).
The code of PTUWT is 46$76.

Test Level 2: Coding Decoding - Question 8
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What will be the code for 'shaker prospectus trick'?

Detailed Solution: Question 8

The code for every word consists of three elements.
1. Immediate successor of the last letter of the word
2. Symbol is assigned according to the first letter of the word.

First letter is coded as follows:

3. The number which is one less than the number of letters in the word
So, shaker will be coded as S@5.
Prospectus will be coded as T*9.
Trick will be coded as L?4.

Test Level 2: Coding Decoding - Question 9
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What will be the code for 'linguist paraglide emperor'?

Detailed Solution: Question 9

The code for every word consists of three elements.
1. Immediate successor of the last letter of the word
2. Symbol is assigned according to the first letter of the word.

First letter is coded as follows:

3. The number which is one less than the number of letters in the word
So, code for linguist is U%7.
Code for paraglide is F*8.
Code for emperor is S^6.

Test Level 2: Coding Decoding - Question 10
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Find the resultant of the second row, if N is the resultant of the first row.

Detailed Solution: Question 10

12 × 09 = 108 (As per step 2)
125 − 108 = 17 (As per step 3)
N = 17
17 + 21 = 38 (As per step 5)
38 × 15 = 570 (As per step 2)

Test Level 2: Coding Decoding - Question 11
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Find the resultant of the first row if N is the resultant of the second row.

Detailed Solution: Question 11

109 − 56 = 53 (As per step 1)
53 + 39 = 92 (As per step 5)
N = 92
216 - 92 = 124 (As per step 3)
124 × 09 = 1116 (As per step 2)

Test Level 2: Coding Decoding - Question 12
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Row I: 9, 11, 34
Row II: 16, 9, 8

What is the difference between the resultant numbers in the first row and the second row?

Detailed Solution: Question 12

  1. If an even number is followed by an even number, then the first number will be subtracted from the second.

Row I: 9, 11, 34
Row II: 16, 9, 8

Result: No condition Matches.

  1. If an odd number is followed by an odd number, then both will be added.

Row I: 9, 11, 34
Row II: 16, 9, 8

Resulting number of first row = 11 + 9 = 20

Result: Thus, the resulting number will be 20.

  1. If an odd number is followed by an even number, then the even number will be subtracted from the square of the odd number.

Row I: 9, 11, 34
Row II: 16, 9, 8

Resulting number of first row = 11² - 34 = 121 - 34 = 87
Resulting number of second row = 9² - 8 = 81 - 8 = 73

  1. If an even number is followed by an odd number, then the odd number will be subtracted from the even number.

Row I: 9, 11, 34
Row II: 16, 9, 8

Resulting number of second row = 16 - 9 = 7

Result: Thus, the resulting number will be 7.

The difference between the resultant numbers in the first row and the second row is:

Total sum of the first row of resultant number is = 20 + 87 = 107
Total sum of the second row of resultant number is = 73 + 7 = 80

Difference of first row and second row of the resultant number is = 107 - 80 = 27

Hence, "27" is the correct answer.

Test Level 2: Coding Decoding - Question 13
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Using the given rules, find the code for 'student perfect'.

Detailed Solution: Question 13

 If the number of letters in a word is odd, then symbol is @.
If the number of letters in a word is even, then symbol is #.
E.g. Number of letters in word 'play' is 4, so the symbol will be #.
The letter in the code is opposite to the last letter of the word in the alphabet in terms of position.
E.g. Last letter in the word 'play' is y. So, the letter in code will be b, as it is opposite to y.
The number in the code is the position of the letter opposite to the second-last letter of the word.
E.g. 'a' is the second-last letter in the word 'play'.
Opposite to a is z, and the position of z in alphabet is 26. So, the number will be 26.
Hence, the code for 'play' will be 26#b.
Now, code for 'student' will be 13@g.
Similarly, code for 'perfect' will be 24@g.

Test Level 2: Coding Decoding - Question 14
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What will be the code for 'am' in this code language?

Detailed Solution: Question 14

If the number of letters in a word is odd, then symbol is @.
If the number of letters in a word is even, then symbol is #.
E.g. Number of letters in word 'play' is 4, so the symbol will be #.
The letter in the code is opposite to the last letter of the word in the alphabet in terms of position.
E.g. Last letter in the word 'play' is y. So, the letter in code will be b, as it is opposite to y.
The number in the code is the position of the letter opposite to the second-last letter of the word.
E.g. 'a' is the second-last letter in the word 'play'.
Opposite to a is z, and the position of z in alphabet is 26. So, the number will be 26.
Hence, the code for 'play' will be 26#b.
Following the same rules, code for 'am' will be 26#n.

Test Level 2: Coding Decoding - Question 15
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What does the code 12@m 26@b 9@h represent?

Detailed Solution: Question 15

 If the number of letters in a word is odd, then symbol is @.
If the number of letters in a word is even, then symbol is #.
E.g. Number of letters in word 'play' is 4, so the symbol will be #.
The letter in the code is opposite to the last letter of the word in the alphabet in terms of position.
E.g. Last letter in the word 'play' is y. So, the letter in code will be b, as it is opposite to y.
The number in the code is the position of the letter opposite to the second-last letter of the word.
E.g. 'a' is the second-last letter in the word 'play'.
Opposite to a is z, and the position of z in alphabet is 26. So, the number will be 26.
Hence, the code for 'play' will be 26#b.
So, applying the same rules:

Test Level 2: Coding Decoding - Question 16
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In a certain code, `MTUXTRVN` is written as `NUVXTQUM`. How is `ASUMNJKL` written in that code?  

Detailed Solution: Question 16

Given that,
M + 1 = N
T + 1 = U
U + 1 = V
X + 0 = X
T + 0 = T
R - 1 = Q
V - 1 = U
N - 1 = M

Similarly,
A + 1 = B
S + 1 = T
U + 1 = V
M + 0 = M
N + 0 = N
J - 1 = I
K - 1 = J
L - 1 = K

Test Level 2: Coding Decoding - Question 17
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In a certain code language, STRING is written as %= *- $and PRAISE as ?*@-%. How will GRAPES be written in that code language?  

Detailed Solution: Question 17

The code for GRAPES is ÷*@?%.

Test Level 2: Coding Decoding - Question 18
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PDYIU

Detailed Solution: Question 18

First letter is a consonant and the last letter is a vowel, the codes of both of these letters are to be interchanged.
Hence, PDYIU is coded as 52^%$.

Test Level 2: Coding Decoding - Question 19
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What does the code E&3 D?9 T!6 represent?

Detailed Solution: Question 19

The code for every word consists of three elements.
1. Immediate successor of the last letter of the word
2. Symbol is assigned according to the first letter of the word.

First letter is coded as follows:


3. The number which is one less than the number of letters in the word
So, E&3 is representing Good.
D?9 is representing tabulastic.
T!6 is representing bankers.

Test Level 2: Coding Decoding - Question 20
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Which of the following words is represented by T%6?

Detailed Solution: Question 20

The code for every word consists of three elements.
1. Immediate successor of the last letter of the word
2. Symbol is assigned according to the first letter of the word.

First letter is coded as follows:


3. The number which is one less than the number of letters in the word
So, Lavabos is coded as T%6.

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