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Which of the following numbers will replace the question mark (?) in the given series? 122, 135, 161, 200, 252, ?
Question

Which of the following numbers will replace the question mark (?) in the given series?
122, 135, 161, 200, 252, ?

A.

217

B.

417

C.

317

D.

517

Correct option is C

Given: 
122, 135, 161, 200, 252, ?
Logic: Each step adds 13 more than the previous step.
135 - 122 = 13 (13 × 1)
161 - 135 = 26 (13 × 2)
200 - 161 = 39 (13 × 3)
252 - 200 = 52 (13 × 4)
Next difference = 13 × 5 = 65
252 + 65 = 317

Thus, correct option is (c).

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