## How to Solve Civil Service Exam Number Series Problems 3

This is the third part of the solving number series problems. The first part includes dealing with patterns that contains addition and subtraction and the second part discusses patterns that contains multiplication or division.

In this post, we are going to learn some “alternating sequences.” I put a quote in alternating sequence because in mathematics, it has a slightly different meaning. Note that it is likely that these type of sequence will appear in examinations such as the Civil Service Exam.

Before we continue with the discussion, try to see if you can answer the following questions.