In "Number Series" question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces

In following questions, one term in number series is incorrect.

Find out the incorrect number 24, 27, 31, 33, 36

A. 24
B. 27
C. 31
D. 33
Answer: C . 31


Each term in the series is increased by 3 to obtain the next term.
So, 31 is wrong and must be replaced by (27 + 3) i.e. 30.