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Select the numbers from among the given options that can replace the question marks (?) in the same sequence and make the series logically complete. 1
Question

Select the numbers from among the given options that can replace the question marks (?) in the same sequence and make the series logically complete.
17, 18, 22, 31, ?, 72, ?, 157

A.

49, 106

B.

45, 107

C.

47, 108

D.

47, 105

Correct option is C

Given: 
17, 18, 22, 31, ?, 72, ?, 157
Logic: Differences are squares of natural numbers.
18 − 17 = 1 = 1²
22 − 18 = 4 = 2²
31 − 22 = 9 = 3²
? − 31 = 16 = 4² → ? = 47
72 − 47 = 25 = 5²
? − 72 = 36 = 6² → ? = 108
157 − 108 = 49 = 7²
Missing numbers: 47 and 108

Thus, correct option is (c).

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