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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

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

12, 32, 72, 152,

Option:
A. 312
B. 325
C. 515
D. 613
Answer: A . 312

Justification:

The pattern is + 20, + 40, + 80,...
.'. Missing number = 152 + 160 = 312.

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