Series Completion - Verbal and Reasoning

Directions to SolveChoose the correct alternative that will continue the same pattern and replace the question mark in the given series.

3, 15, ?, 63, 99, 143

A 27

B 35

C 45

D 56

ANS:B - 35

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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