Question 28

Find the wrong number in the given series.
3, 7, 15, 31, 64, 127

Solution

The logic here is

7 = 3 x 2 + 1

15 = 7 x 2 + 1

31 = 15 x 2 + 1

63 = 31 x 2 + 1

127 = 63 x 2 + 1

$$\therefore\ $$64 is the wrong number in the given series from the above pattern.

Share on Whatsapp Share on Whatsapp

Create a FREE account and get:

Find the wrong number in the given series.3, 7, 15, 31, 64, 127