In the following letter sequence, each group follows a specific pattern. Identify the group of letters that should come next in t…
Reasoning & General Intelligence ·Previously asked in SSC CGL 2025
View the full solved paper: SSC CGL 2025 Tier II (19 Jan 2026)
Question
In the following letter sequence, each group follows a specific pattern. Identify the group of letters that should come next in the sequence. ZYA, WVD, TSG, QPJ,?
- A. OMN
- B. MON
- C. NMM (Correct answer)
- D. MNM
Correct Answer
Option C — NMM
Detailed Solution & Explanation
The correct answer is NMM.
Key Points
- Read the clusters column by column:
- 1st letters: Z(26), W(23), T(20), Q(17) — each −3 → next is 14 = N
- 2nd letters: Y(25), V(22), S(19), P(16) — each −3 → next is 13 = M
- 3rd letters: A(1), D(4), G(7), J(10) — each +3 → next is 13 = M
- Combining gives N M M.
Additional Information
- Two columns move backwards while the third moves forwards — mixed directions are common, so test each position independently rather than looking for one rule.
- Note the first two letters of each cluster are consecutive in reverse (ZY, WV, TS, QP), a secondary pattern that confirms the answer.
- The second and third letters coincidentally land on the same letter M here, so a repeated letter in the answer is not a sign of error.
- Options MON, MNM and OMN use the same letters rearranged, so verify the order position by position before choosing.
Topics covered: Series Letter Series