If ‘SUN’ is coded as ‘RTM’, what is the code for ‘MOON’?

Question

If ‘SUN’ is coded as ‘RTM’, what is the code for ‘MOON’?

1. A. LNNP
2. B. LNNM (Correct answer)
3. C. LNNO
4. D. LMPM

Correct Answer

Option B — LNNM

Detailed Solution & Explanation

The correct answer is LNNM.

Key Points

• Derive the code rule from SUN → RTM: S→R, U→T, N→M — every letter shifts one step back in the alphabet.
• Apply −1 to MOON: M→L, O→N, O→N, N→M, giving LNNM.
• Option A (LNNP) sneaks in a +1 on the final letter — after deriving a rule, apply it to every letter and re-verify the last one especially, since that's where wrong options usually deviate.