The Venn Diagram Problem Solving Tutorial Series

According to some readers who took the Civil Service Examination last April and October, some of the questions include Venn diagram problems, so I wrote a series on how to solve problems about it. The Venn Diagram Problem Solving Tutorial Series is a series of detailed tutorials on how to solve Venn Diagram Word problems. It is recommended that you read the tutorial in the following order.

1. Introduction to Venn Diagrams defines and introduces the use of Venn Diagrams.  This includes how to set up problems involving 2-circle Venn Diagrams and 3-circle Venn Diagrams.

2. How to Solve Venn Diagram Problems Part 1 is a detailed tutorial on how to solve  2-circle diagram problems.

3. How to Solve Venn Diagram Problems Part 2 is a detailed tutorial on how to solve  3-circle diagram problems.

If you have questions, please use the comment box below.

Introduction to Venn Diagrams

According to some examinees, there are several items in the October 2014 Civil Service Exam that requires the use of Venn diagrams, so I will discuss in details how to use Venn diagrams in a series of posts.  In this post, I am going to introduce its concept and its use as layman as possible. I will limit the discussion to the preparation of solving word problems involving Venn diagrams.

Venn diagrams are used to represent logical relations between sets. In word problems involving diagrams, elements of sets are usually people who choose or prefer a particular thing (e.g. color, food, hobbies). For instance, we have two available desserts, biscuits and cookies, and then Abby ate a biscuit and Bella ate a cake. Chubby, being extremely hungry, ate a biscuit and a cake. So, the situation can be represented as follows using a Venn diagram.  » Read more

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