Question

In the following number series, a wrong number is given. Find out the wrong number.

10, 11, 7, 16, 1, 25, -11

1. 25
2. 1
3. -11
4. 10
5. 11

Answer 1

Correct Answer - Option 2 : 1

The pattern of given series is:

⇒ 10 + 12 = 11

⇒ 11 – 22 = 7

⇒ 7 + 32 = 16

⇒ 16 – 42 = 0

⇒ 0 + 52 = 25

⇒ 25 – 62 = –11