Find the missing number of the series 17, 16, 136, 38, 16, 418, 24, ?, 144

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21 Nov 2016 Series

Find the missing number of the series
17, 16, 136, 38, 16, 418, 24, ?, 144

OPtion

1) 31
2) 68
3) 256
4) 57
5) 81
6) 45
7) 62
8) 25
9) 86
10)20

Solution

Reason-
The series is (17,16,136),(38,16,418),(24,?,144)
3rd number in first bracket = 17*(1+7)= 17*8= 136
2nd number in first bracket = [(1+7)-(1+3+6)]^4 = (8-10)^4 = 16

2nd number in third bracket = [(2+4)-(1+4+4)]^4 = (6-9)^4 = 81

Option 5)

Correct Option: 5 Best Solution (0)