Question

What should come in place of question mark ‘?’ in the following number series?

17 21 51 169 701 ?

A 3022 Correct Answer Incorrect Answer
B 3541 Correct Answer Incorrect Answer
C 3154 Correct Answer Incorrect Answer
D 3356 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

17×1 + 4 = 21 21×2 + 9 = 51 51×3 + 16 = 169 169×4 + 25 = 701 701×5 + 36 = 3541

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