Reasoning Ability Coding Decoding Sample Test Paper - 3 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 - 3

Q.1. In a certain code language, 'pen pencil' is written as '$%'. 'eraser sharpener' is written as '@#' and 'pencil eraser' is written as '$@'. Then, what is the code for 'pen'?

A) #
B) $
C) @
D) %
E) None of these

Explanation (Show/Hide)

Here
(i). pen pencil - $%
(ii). eraser sharpener - @#
(iii). pencil eraser - $@
From (ii) and (iii): eraser - @
so from (iii): pencil - $
Hence from (i): pen - %

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Q.2. In a certain code language, '234' means 'spark and fire', '456' means 'spark is cause' and '258' means 'fire is effect'. Which of the following numerals is used for 'cause'?

A) 3
B) 4
C) 5
D) 6
E) 9

Explanation (Show/Hide)

Here
(i). 234 - spark and fire
(ii). 456 - spark is cause
(iii). 258 - fire is effect
From (ii) and (iii): 5 - is
From (i) and (ii): 4 - spark
Hence from (ii): cause - 6

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Directions for Q. 3 - 5.
In a certain code, 'it be pee' means 'roses are blue', 'sik hee' means 'red flowers' and 'pee mit hee' means 'flowers are vegetables'.

Explanation (Show/Hide)

Here
(i). it be perr - roses are blue
(ii). sik hee - red flowers
(iii). pee mit hee - flowers are vegetables
From (ii) and (iii): flowers - hee
Hence red - sik
From (i) and (iii): are - pee
Hence vegetables - mit

Q.3. How is 'red' written in that code?

A) hee
B) sik
C) be
D) Can not be determined
E) None of these

Explanation (Show/Hide)

Follow solution above.

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Q.4. How is 'roses' written in that code?

A) il
B) pee
C) be
D) Can not be determined
E) None of these

Explanation (Show/Hide)

Follow solution above.

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Q.5. How is 'vegetables are red flowers' written in this code?

A) pee sik mit hee
B) sik pee hee be
C) il sik mitt hee
D) Can not be determined
E) None of these

Explanation (Show/Hide)

Follow solution above.

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Q.6. If NOIDA is written as 39658, how will INDIA be written?

A) 36568
B) 63568
C) 63569
D) 65368
E) None of these

Explanation (Show/Hide)

Form given question
N - 3
O - 9
I - 6
D - 5
A - 8
Hence INDIA is written as 63568.

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Q.7. In a certain code, DEAF is written as 3587 and FILE is written as 7465. How is IDEAL written in that code?

A) 43568
B) 43586
C) 63548
D) 48536
E) None of these

Explanation (Show/Hide)

Form given question
D - 3
E - 5
A - 8
F - 7
I - 4
L - 6
Hence IDEAL is written as 43586.

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Q.8. In a certain code language, THANKS is written as SKNTHA. How is STUPID written in that code language?

A) DIPUTS
B) DISPUT
C) DIPUST
D) DPISTU
E) None of these

Explanation (Show/Hide)

Word is coded as Sixth, Fifth, Fourth, First, Second, Third

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Q.9. In a certain code language, OMNIPRESENT is QJONPTSMDRD. How is CREDIBILITY written in that code?

A) DSFEJDDXSHKH
B) JEFSDCXSHKH
C) JEFSDDXSHKH
D) JEFSDDZUJMJ
E) None of these

Explanation (Show/Hide)

Step 1: Keep the middle letter same and write first five and last five letters in reverse order.
Step 2: Now move first five letters forward by 1, middle latter by 2 and move last five latter backward by 1.

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Q.10. If NARGRUED is the code for GRANDEUD, which word is coded as SERPEVRE?

A) PERSEVER
B) PRESEVER
C) PERSERVE
D) PERVERSE
E) PRESERVE

Explanation (Show/Hide)

First divide word in set of four letters as NARG RUED.
Now write these four letters in reverse order. GRAN DEUD.
Hence for SERPEVRE the code is PRESERVE.

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