Choose the appropriate option (2), 5, (12), 25, 41, 61 - Number Series - Series Completion - Verbal

In following number series, two terms have been put within brackets. Choose the appropriate option - Choose the appropriate option (2), 5, (12), 25, 41, 61

A. if both the bracketed terms are right:

B. if the first bracketed term is right and second is wrong:

C. if the first bracketed term is wrong and second is right:

D. if both the bracketed terms are wrong.

E. None of the above

Answer: D. if both the bracketed terms are wrong.

The correct sequence is + 4, + 8, + 12, + 16, + 20.
Clearly, 2 is wrong and must be replaced by (5 - 1) i.e. 4.
Also, 12 is wrong and should be replaced by (5 + 8) i.e. 13.

Posted in: Number Series - Series Completion - Verbal Reasoning