Multiple choice general knowledge math & puzzles

1, 3, 6, 10, 15, 21, 28, _______

  1. 36

  2. 37

  3. 38

  4. 39

  5. 40

  6. 41
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is a sequence of triangular numbers where the difference increases by 1 each time: +2, +3, +4, +5, +6, +7. The next difference is +8, so 28 + 8 = 36.

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