3, 4, 7, 8, 11, 12, ... What number should come next?
A. 7
B. 10
C. 14
D. 15
Answer: Option D
Solution(By Examveda Team)
This alternating addition series begins with 3; then 1 is added to give 4; then 3 is added to give 7; then 1 is added, and so on.This Question Belongs to Competitive Reasoning >> Number Series Completion
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