Which number will replace the question mark (?) in the following numbe – InterviewSolution

InterviewSolution

1.

Which number will replace the question mark (?) in the following number series?5, 17, 53, ? , 4851. 1612. 1573. 1634. 159

Answer» Correct Answer - Option 1 : 161

The pattern followed here is:

First digit× 3 + 2 = Second digit, Second digit× 3 + 2 = Third digit, and so on.

So, 5× 3 + 2 = 17

17× 3 + 2 = 53

53× 3 + 2 = 161

161× 3 + 2 = 485

Hence, the correct answer is "161".

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