Multiple choice general knowledge math & puzzles

Look at this series: 3, 4, 7, 8, 11, 12, ... What number should come next?

  1. 7

  2. 10

  3. 14

  4. 15
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pattern alternates between adding 1 and adding 3: 3+1=4, 4+3=7, 7+1=8, 8+3=11, 11+1=12. The next operation is +3, giving 12+3=15. Option B (10) would require subtracting 2, and option C (14) would need +2, neither of which fit the established pattern.

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