Multiple choice general knowledge math & puzzles

complete the given series: 3 6 11 20 ...

  1. 34

  2. 35

  3. 36

  4. 37
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pattern is 2^n + n for the nth term starting from n=1: 2^1+1=3, 2^2+2=6, 2^3+3=11, 2^4+4=20. The fifth term is 2^5+5=32+5=37. Alternatively, differences double-plus-one: +3, +5, +9, +17... where each difference follows 2^k+1.

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