Reasoning Ability Coding Decoding Sample Test Paper - 2 with Answer Key and Detailed Solution Download in PDF

Here is solved questions of Coding - Decoding for competitive exams. Coding- Decoding questions are asked in almost all examinations and candidates need to practice this section very hard to score good marls and hence good position in merit list.You can also download this question paper in PDF to save it for future references or take print out.

Reasoning Ability Coding Decoding Model Test Paper - 2

Q.1. In a certain code, DECEMBER is written as ERMBCEDE. Which word will be written as ERMBVENO in that code?

A) AUGUST
B) SEPTEMBER
C) OCTOBER
D) NOVEMBER
E) None of these

Explanation (Show/Hide)

In the given question word is coded as
Step 1: Split the word in the pair of two: DE CE MB ER
Step 2: Write it in reverse order: ER MB CE DE (Code).
To find a word from the code we need to reverse the process
The given code is : ERMBVENO -> ER MB VE NO -> NO VE MB ER -> NOVEMBER

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Q.2. If in a certain language, POPULAR is coded as QPQVMBS, which word would be coded as GBNPVT?

A) FARMER
B) FAMOUS
C) FRAMES
D) FARMES
E) FAMOTH

Explanation (Show/Hide)

From Word - > Code : each letter is incremented by one.
So from Code -> Word : each letter need to be decremented by one.

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Q.3. If ACNE can be coded as 3, 7, 29, 11 than BOIL will be coded as

A) 5, 29, 19, 27
B) 5, 29, 19, 25
C) 5, 31, 21, 25
D) 5, 31, 19, 25
E) None of these

Explanation (Show/Hide)

Here each letter is coded as its place in alphabetical order + next digit. like
A's place is 1st => 1 + 2 = 3
C's place is 3rd => 3 + 4 = 7
N's place is 14th => 14 + 15 = 29
E's place is 5th => 5 + 6 = 11
Similarly we can code BOIL as 5, 31, 19, 25.

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Q.4. If 'sky' is 'star', 'star' is 'cloud', 'cloud' is 'earth', 'earth' is 'tree' and 'tree' is 'book' than where do the birds fly?

A) Cloud
B) Sky
C) Star
D) Data inadequate
E) None of these

Explanation (Show/Hide)

Bird fly in the sky but as given 'sky' is 'star' so bird fly in 'star'.

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Q.5. If 'blue' means 'green', 'green' means 'white', 'white' means' yellow', 'yellow' means 'black', 'black' means 'red' and 'red' means 'brown', than what is the color of milk?

A) Black
B) Brown
C) Blue
D) Yellow
E) Green

Explanation (Show/Hide)

As color of milk is white and 'green' means 'white'. So ans is E

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Directions for Q. 6 to 10. Study the following information carefully to answer these questions:
The digits from 0 to 9 are coded as shown below along with the exceptions I and II:
3 - H, 8 - $, 0 - R, 7 - A, 4 - M, 6 - %, 9 - L, 2 - K, 5 - E, 1 - Z
Exception I: If a number begins and ends with a non-zero odd digit, then the first and the last digits are to be coded as Y and # respectively.
Exception II: If a number begins and ends with an even digit (including zero), then the first, and the last digits are to be coded as B and X respectively.

Q.6. What will be the code for 764981?

A) A%ML$Z
B) Y%ML$Z
C) Y%ML$#
D) A%ML$#
E) None of these

Explanation (Show/Hide)

Since number ends with a non-zero odd number, from exception I, first and the last digits are Y and #.

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Q.7. What does MHLEK% represent?

A) 439526
B) 439520
C) 436529
D) 489526
E) None of these

Explanation (Show/Hide)

From the given information MHLEK% is written as 439526

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Q.8. What will be the code for 278140?

A) BA$ZMR
B) BA$ZMX
C) KA$ZMR
D) YA$ZM#
E) None of these

Explanation (Show/Hide)

As number ends with even digit then from Exception II first and last digits are coded as B and X.

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Q.9. What will be the code for 173548?

A) ZAHEK$
B) ZAREM$
C) ZAHEM$
D) ZAHME$
E) None of these

Explanation (Show/Hide)

From the information given above 173548 is coded as ZAHEM$

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Q.10. What does R%LAKZ represents?

A) 069725
B) 697210
C) 069751
D) 064721
E) None of these

Explanation (Show/Hide)

From the information given above R%LAKZ is coded as 069721.

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