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Series Completion Interview Questions and Answers

Question -
3, 15, ?, 63, 99, 143

A. 27
B. 35
C. 45
D. 56


Answer -

Option B

Explanation:

The terms of the given series are (22 - 1), (42 - 1),....., (82 - 1), (102 - 1), (122 - 1).

So, missing term = (62 - 1) - (36 - 1) = 35.

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