7, 13, 25, 49, 97, …………
A.
B.
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D.
Answer & Solution
Solution:
The number series follows the following rule
1st number = 7
2nd number = 7 x 2 -1 = 13
3rd number = 13 x 2 - 1 = 25
4th number = 25 x 2 - 1 = 49
5th number = 49 x 2 - 1 = 97
6th number = 97 x 2 – 1
= 193
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