Number Series, Coding and DecodingMCQPYQ Sep 24Question 2108 of 217

If TAP is coded as SZO in a language, then how is FRIEND coded in same language?

AQEDHCM

BCMDHQE

CEQIFNE

DEQHDMC

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Correct Answer

✅ Option d — EQHDMC

Let's analyze the shift pattern in coding

\displaystyle TAP \rightarrow SZO

by looking at alphabetical positions:

\displaystyle \text{T (20)} \xrightarrow{-1} \text{S (19)}

\displaystyle \text{A (1)} \xrightarrow{-1} \text{Z (26)}

(circular backward shift)

\displaystyle \text{P (16)} \xrightarrow{-1} \text{O (15)}

The pattern is a constant backward shift of

\displaystyle -1

for each letter.

Now, let's apply this same shift of

\displaystyle -1

to the letters of the word

\displaystyle FRIEND

:
1.

\displaystyle \text{F (6)} \xrightarrow{-1} \text{E (5)}

\displaystyle \text{R (18)} \xrightarrow{-1} \text{Q (17)}

\displaystyle \text{I (9)} \xrightarrow{-1} \text{H (8)}

\displaystyle \text{E (5)} \xrightarrow{-1} \text{D (4)}

\displaystyle \text{N (14)} \xrightarrow{-1} \text{M (13)}

\displaystyle \text{D (4)} \xrightarrow{-1} \text{C (3)}

Combining these results, the code for

\displaystyle FRIEND

\displaystyle EQHDMC

.

Hence, **Option D** is the correct answer.

Paper

Paper 3: Quantitative Aptitude

Weightage

5 Marks

Key Topics

Number series, Coding & Decoding, Odd man out

This chapter covers Number series, Coding & Decoding, Odd man out and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.

Exam Strategy Tip

This topic carries 5 Marks weightage. Focus on understanding core concepts rather than memorizing.

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