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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.

1, 2, 5, 12, 27, 58, 121,

Option:
A. 246
B. 247
C. 248
D. 249
Answer: C . 248

Justification:

The pattern is * 2 + 0, * 2 + 1, * 2 + 2, * 2 + 3, * 2 + 4, * 2 + 5,...
.'. MIssing number = 121 * 2 + 6 = 248.

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