Select the number that can replace the question mark (?) in the following series.7, 8, 12, 21, 37, ?
A. 58
B. 53
C. 64
D. 62
1 answer
Best answer
Answer: D. 62
Answer: (D) 62
The differences are 1, 4, 9, 16, that is \(1^2, 2^2, 3^2, 4^2\).
Next difference = \(5^2 = 25\), so 37 + 25 = 62.
Doubtly AI
· 27 Oct 2026
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