Number Series, Coding and DecodingPYQ Sept 25Question 4443 of 217
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In a certain code, GLAMOUR is written as IJCNMWP and MISRULE is written as OGUSSNC, then how will MUSICAL be written in that code?

Options

AOSUJECN
BOSUHACJ
COSUJACJ
DOSUJABJ
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Correct Answer

✅ Option c — OSUJACJ

All Options:

  • AOSUJECN
  • BOSUHACJ
  • COSUJACJ
  • DOSUJABJ

Detailed Solution & Explanation

Let us analyze the letter-shifting pattern for "GLAMOUR" coded as "IJCNMWP": - G(7) →\displaystyle \to I(9): +2 - L(12) →\displaystyle \to J(10): -2 - A(1) →\displaystyle \to C(3): +2 - M(13) →\displaystyle \to N(14): +1 - O(15) →\displaystyle \to M(13): -2 - U(21) →\displaystyle \to W(23): +2 - R(18) →\displaystyle \to P(16): -2
Thus, the shifting pattern is: +2,−2,+2,+1,−2,+2,−2\displaystyle +2, -2, +2, +1, -2, +2, -2. Let us verify if "MISRULE" →\displaystyle \to "OGUSSNC" follows the same pattern: - M(13) →\displaystyle \to O(15): +2 - I(9) →\displaystyle \to G(7): -2 - S(19) →\displaystyle \to U(21): +2 - R(18) →\displaystyle \to S(19): +1 - U(21) →\displaystyle \to S(19): -2 - L(12) →\displaystyle \to N(14): +2 - E(5) →\displaystyle \to C(3): -2 This confirms the pattern.
Now let us apply this pattern to the word "MUSICAL": - M(13) + 2 →\displaystyle \to O(15) - U(21) - 2 →\displaystyle \to S(19) - S(19) + 2 →\displaystyle \to U(21) - I(9) + 1 →\displaystyle \to J(10) - C(3) - 2 →\displaystyle \to A(1) - A(1) + 2 →\displaystyle \to C(3) - L(12) - 2 →\displaystyle \to J(10) Combining these letters, we get: "OSUJACJ".
Hence, **Option C** 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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