Instructions

What will come in place of question mark (?) in the following number series.?

Question 132

7, 13, 25, 49, ??

Solution

Each number in the given series is one less than double the previous number.

For example, 13 = 2*7 -1
25 = 2*13 - 1
49 = 2*25 -1

Hence, the number next in the series is 2*49 - 1 = 97

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