Question

What should come in place of the question mark (?) in the following number series.

22 23 27 36 52 77 ?

(a) 111 (b) 109 (c) 113 (d) 117 (e) 115

Answer 1

(c) The given number series is based on the following pattern:
22 + 1² = 22 + 1 = 23
23 + 2² = 23 + 4 = 27
27 + 3² = 27 + 9 = 36
36 + 4² = 36 + 16 = 52
52 + 5² = 52 + 25 = 77
? = 77 + 62
= 77 + 36 = 113