Question
What number would replace question mark (?) in the series given below?
3, 8, 17, 32, 57, ?, 177
Options :
100
89
95
106
Answer :
100
Solution :
3 = 21 + 12
8 = 22 + 22
17 = 23 + 32
32 = 24 + 42
57 = 25 + 52
Hence, 26 + 62 = 100
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