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Series Completion - Verbal and Reasoning

Directions to SolveIn this type of questions, one term in the number series is wrong. Find out the wrong term.
Q1:

1, 5, 5, 9, 7, 11, 11, 15, 12, 17

A 11

B 12

C 17

D 15

ANS:B - 12

Explanation: The given sequence is a combination of two series: I. 1, 5, 7, 11, 12 and II. 5, 9, 11, 15, 17 The pattern in both I and II is + 4, + 2, + 4, + 2. So, 12 is wrong and must be replaced by (11 + 2) i.e. 13.