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Which number will replace the question mark (?) in the following number series? 5, 17, 53, ?, 485

A163

B157

C159

D161

Answer:

D. 161

Read Explanation:

5 × 3 + 2 = 17 17 × 3 + 2 = 53 So, 53 × 3 + 2 = 161


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