Complete the series: 1,2,5.12,27,58 ?

/ By / Mathematics Mcqs
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(A) 102

(B) 112
(C) 121

(D) none of these

Solution:
1×2 +0 = 2

2×2+1 = 5

5×2 + 2 = 12

11×2+13 = 27

27×2 + 4 = 58

58×2 + 5=121

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