Question 37

Find the wrong number in the given series:
7, 15, 32, 65, 138

Solution

The logic here is

7 x 2 + 1 = 15

15 x 2 + 2 = 32

32 x 2 + 3 = 67

67 x 2 + 4 = 138

$$\therefore\ $$65 is the wrong number in the given series.

Hence, the correct answer is Option A

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