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In "Number Series" question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces

Look at this series: 14, 28, 20, 40, 32, 64, . . .
What number should come next ?

Option:
A. 52
B. 56
C. 96
D. 128
Answer: B . 56

Justification:

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

Rule = (1st no.) (1st x 2 = 2nd no.) (2nd - 8 = 3rd no.) (3rd x 2  = 4th no.)....
Now (14) (14 x 2 = 28) (28 - 8 = 20) (20 x 2 = 40) (40 - 8 = 32) (32 x 2 = 64) (64 - 8 = 56)...
So the answer is b = 56.

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