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Complete the series: 14, 28, 20, 40, 32, 64, ……?

A) 52

B) 56

C) 96

D) 128

This is an alternating multiplication and subtracting series: First, multiply by 2 and then subtract 8:

14 x 2 = 28  , 28 – 8 = 20

20 x 2 = 40 ,  40 – 8 = 32

32 x 2 = 64 ,  64 – 8 = 56

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