Multiple choice general knowledge math & puzzles

6, 9, 15, 21, 24, 28, 30

  1. 28

  2. 21

  3. 24

  4. 30
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

All numbers in the sequence are divisible by 3. Checking: 6÷3=2, 9÷3=3, 15÷3=5, 21÷3=7, 24÷3=8, 30÷3=10. However, 28÷3 is not an integer (28=3×9+1), so 28 doesn't belong in this pattern.

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