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What should come in place of question mark ‘?’ in the following number series? 16, 87, 103, 135, 151, 183, ?

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What should come in place of question mark ‘?’ in the following number series?

16, 87, 103, 135, 151, 183, ?
1). 119
2). 238
3). 231
4). 115


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Answered by on | Votes 2 |

The series follows the following pattern: 

(16 × 11/2) − 1 = 87

(16 × 13/2) − 1 = 103

(16 × 17/2) − 1 = 135

(16 × 19/2) − 1 = 151

(16 × 23/2) − 1 = 183

⇒ According to the logic the next number after 183 is (16 × 29/2) − 1 = 231

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