15, 16, 22, 29, 45, 70

1.	15, 16, 22, 29, 45, 70
Answer» The correct pattern is + 1, + 4, + 9, + 16, + 25 i.e. + 12, + 22, + 32, + 42, + 52. So, 22 is wrong and must be replaced by (16 + 4) i.e. 20.

Discussion