Multiple choice general knowledge math & puzzles

1,3,6,11,18.. what is the next number?

  1. 30

  2. 25

  3. 29

  4. 27
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The differences between the numbers are increasing prime numbers: 1(+2)3, 3(+3)6, 6(+5)11, 11(+7)18. The next prime number after 7 is 11. Adding 11 to 18 results in 29. The distractors use non-prime increments or incorrect prime sequences.

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