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Select the number that can replace the question mark (?) in the following series.12, 17, 14, 19, 16, 21, 18, ?
Question

Select the number that can replace the question mark (?) in the following series.
12, 17, 14, 19, 16, 21, 18, ?

A.

22

B.

23

C.

18

D.

20

Correct option is B

Given: 12, 17, 14, 19,16, 21, 18, ?
Logic: 1st term + 2 = 3rd term, 2nd term + 2 = 4th term,.......
Let's solve it :
First series: 12, 14, 16, 18, 
12 + 2 = 14 , 14 + 2 = 16, 16 + 2 = 18
Second series: 17, 19, 21, 
17 + 2 = 19, 19 + 2 = 21, 21 + 2 = 23
So, the next number will be: 23.
Thus, the correct option is (b) 23.

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