Multiple choice general knowledge math & puzzles

1 7 25 61 ?

  1. 122

  2. 121

  3. 120

  4. 125
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sequence follows n³ + 1: 1³+1=2 (not 1), wait - let's reconsider. Actually it's: 1=1³-0, 7=2³-1, 25=3³-2, 61=4³-3, so 121=5³-4. Each term is n³-(n-1) for position n.

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