Multiple choice general knowledge math & puzzles J, F, M, A ... what is the Next letter? J A S M Reveal answer Fill a bubble to check yourself D Correct answer Explanation The letters represent the first letters of the months of the year: January, February, March, April. The next month is May, so the next letter is 'M'. 'J', 'A', and 'S' would correspond to June/July, August, and September respectively.