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11, 25, 49, 97, 193, 385, 769
Question

In the given series, one term is wrong. Find out the wrong term in the series given below.


11, 25, 49, 97, 193, 385, 769

A.

769

B.

385

C.

49

D.

25

E.

11

Correct option is E

Wrong number = 11
Pattern of series –
13×2-1=25
25 ×2-1=49
49 ×2-1= 97
97 ×2-1=193
193 ×2-1=385
385 ×2-1=769

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