Number Series, Coding and DecodingMCQPYQ Dec 22Question 2102 of 217
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If ROSE is coded as 6821, CHAIR is coded as 73456 and PREACH is coded as 961473, what will be the code for SEARCH?

Options

A246173
B214673
C216473
D214763
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Correct Answer

✅ Option b — 214673

All Options:

  • A246173
  • B214673
  • C216473
  • D214763

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Detailed Solution & Explanation

To find the code for the word **SEARCH** based on the given codes **ROSE** =6821\displaystyle = 6821, **CHAIR** =73456\displaystyle = 73456, and **PREACH** =961473\displaystyle = 961473, let us extract the direct letter-to-digit mappings:

From **ROSE** =6821\displaystyle = 6821:
- R→6\displaystyle R \to 6
- O→8\displaystyle O \to 8
- S→2\displaystyle S \to 2
- E→1\displaystyle E \to 1

From **CHAIR** =73456\displaystyle = 73456:
- C→7\displaystyle C \to 7
- H→3\displaystyle H \to 3
- A→4\displaystyle A \to 4
- I→5\displaystyle I \to 5
- R→6\displaystyle R \to 6

From **PREACH** =961473\displaystyle = 961473:
- P→9\displaystyle P \to 9
- R→6\displaystyle R \to 6
- E→1\displaystyle E \to 1
- A→4\displaystyle A \to 4
- C→7\displaystyle C \to 7
- H→3\displaystyle H \to 3
*(We note that all common letter mappings between the three words are perfectly consistent).*

Now, we apply these mappings to the word **SEARCH**:
- S→2\displaystyle S \to 2
- E→1\displaystyle E \to 1
- A→4\displaystyle A \to 4
- R→6\displaystyle R \to 6
- C→7\displaystyle C \to 7
- H→3\displaystyle H \to 3

Putting the digits together in sequence, the code for **SEARCH** is **214673**.

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

About This Chapter: Number Series, Coding and Decoding

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.

View Official ICAI Syllabus

Exam Strategy Tip

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

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