Multiple choice general knowledge math & puzzles

2 5 9 19 37 ...

  1. 76

  2. 75

  3. 74

  4. 72
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pattern is: multiply by 2, then subtract 1 alternately. 2×2=5? No, 2×2+1=5, 5×2-1=9, 9×2+1=19, 19×2-1=37, so 37×2+1=75. The +1, -1 alternates.

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