What comes at X and Y respectively in the following sequence? January, January, December, October, X, March, October, Y, September

Mental Ability & Logical Reasoning ·Previously asked in UPSC Civil Services Examination 2025

View the full solved paper: GS Paper II

Question

What comes at X and Y respectively in the following sequence?

January, January, December, October, X, March, October, Y, September

  1. A. July, May
  2. B. July, April (Correct answer)
  3. C. June, May
  4. D. June, April

Correct Answer

Option B — July, April

Detailed Solution & Explanation

The correct answer is July, April.

Key Points

  • The sequence encodes month-number products or cumulative counts.
  • Working through the pattern: the months correspond to their positions and the differences between consecutive month numbers follow a pattern.
  • X=July (month 7) and Y=April (month 4) correctly continue the sequence. Answer: July, April.