Verbal Reasoning →Series Completion → Number Series→Question : 39

Find the missing term in the following series:
3, 7, 15, ?, 63, 127
[A]30
[B]31
[C]47
[D]52

31
In the above question, each number in the series is one more than twice the preceding number.
So, missing term (15 x 2) + 1 = 31

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