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The missing number in the sequence 5, 6, 15, ? , 89, 170, 291 is
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- 50
- 40
- 42
- 32
- 50
Correct Option: B
The pattern of the given number series is :
5 + 1² = 5 + 1 = 6
6 + 3² = 6 + 9 = 15
15 + 5² = 15 + 25 = ?
∴ ? = 40
40 + 7² = 40 + 49 = 89
89 + 9² = 89 + 81 = 170
Thus , the missing number in the sequence is 40.
