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⁞ Number Series

Reasoning ➤ Number Series ➤ 1

In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much.

Question 1
Q1.  Look at this series: 3, 4, 7, 8, 11, 12, ... What number should come next?
 

Answer :  15


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.
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