7, 10, 8, 11, 9, 12, ... What number should come next?
A. 7
B. 10
C. 12
D. 13
Answer: Option B
Solution(By Examveda Team)
This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.Alternate Solution :
Above Series contains two sub series in it
Series 1st = 7, 8, 9, 10
Series 2nd = 10, 11, 12
Note : Both sub series is in ascending order. Next number is greater by 1 from the previous one.
Related Questions on Number Series Completion
Join The Discussion