Question

In following questions, one term in number series is incorrect.
Find out the incorrect number 15, 16, 22, 29, 45, 70

• A. 16
• B. 22
• C. 45
• D. 70

Answer 1

The correct option is B 22

The pattern is $+1,+4,+9,+16,+25,....i.e.+1^2,+2^2,+3^2,+4^2,+5^2,...$
So, 22 is wrong and must be replaced by (16 + 4) i.e. 20.