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1. One term in the number series is wrong. Find out the wrong term.
15, 16, 22, 29, 45, 70
So, 22 is wrong and must be replaced by (16 + 4) i.e. 20.
15, 16, 22, 29, 45, 70
Solution:
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.