Multiple choice general knowledge math & puzzles

Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?

  1. 7

  2. 10

  3. 12

  4. 13
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This series alternates between two patterns: 7, 8, 9, __ (increases by 1) and 10, 11, 12 (increases by 1). Interleaved: 7, 10, 8, 11, 9, 12, __. The next number after 9 should be 10 (7+1+1+1). Option B (10) is correct.

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