Question

Complete the sequence by filling the missing number:

1. 1, 9, 2, 7, 3, __

2. 5, 11, __, 47, 85, 191



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Answer 1

Ans. The next number in the series would be 191.

Given that, 2, 5, 11, 23, 47, 95,..

Use the below mentioned formula to get the answer: Double of Predecessor No. + 1

or (2P + 1)

Let's check:

(2×2) + 1 = 5

(2×5) + 1 = 11

(2×11) + 1 = 23

(2×23) + 1 = 47

(2×47) + 1 = 95

Accordingly, the next no. in the series would be: 2P + 1

(2×95) + 1 = 191