Direction: Find out the wrong number in the following number series.
Q. 4, 5, 7, 12, 37, 157
A.157
B.12
C.7
D.4
E. None of these
Sol:
4 + 1! = 5
5 + 2! = 7
7 + 3! = 13
13 + 4! = 37
37 + 5! = 157
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