Question 143

What should come in place of the question mark (?) in the following number series?
2 5 11 23 47 95 ?

Solution

The pattern here followed is : 

2 * 2 + 1 = 5

5 * 2 + 1 =  11

11 * 2 + 1 = 23

23 * 2 + 1 = 47

47 * 2 + 1 = 95

95 * 2 + 1 = 191


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