Select the number that will come in place of the question mark (?) in the following series.2, 3, 10, 15, 26, 35, ?
A. 49
B. 51
C. 48
D. 50
1 answer
Best answer
Answer: D. 50
Answer: (D) 50
Terms are \(n^2 + 1\) for odd n and \(n^2 - 1\) for even n: \(1^2+1, 2^2-1, 3^2+1, 4^2-1, 5^2+1, 6^2-1\). Next: \(7^2 + 1 = 50\).
Doubtly AI
· 27 Oct 2026
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