# Pie Graph

Pie graphs represent data in a circle. Here, you can learn how to read or use pie graphs or circle charts.

## Step by step guide to solve Pie Graph problems

• A Pie Chart is a circle chart divided into sectors, each sector represents the relative size of each value.
• To solve problems related to pie graphs, first, categorize your Data, find the Total, and find the value for each category or sector.

### Example 1:

A library has $$670$$ books that include Mathematics, Physics, Chemistry, English, and History. Use the following graph to answer the question. What is the number of Mathematics books?

Solution:

Number of total books $$=670$$
Percent of Mathematics books $$=30\%=0.30$$
Then: $$0.30×670=201$$

### Example 2:

A library has $$840$$ books that include Mathematics, Physics, Chemistry, English, and History. Use following graph to answer question. What is the number of Mathematics books?

Solution:

Number of total books $$=840$$
Percent of Mathematics books $$=30\%=0.30$$
Then: $$0.30×840=252$$

## Exercises

### Answer the following questions based on the Pie graph.

Jason spent \$2,500 last month.

1. How much did Jason spend on his car last month?
2. How much did Jason spend on foods last month?
3. How much did Jason spend on his rent last month?
4. What fraction is Jason’s expenses for his bills and Car out of his total expenses last month?

1. $$\color{blue}{550}$$
2. $$\color{blue}{250}$$
3. $$\color{blue}{700}$$
4. $$\color{blue}{\frac{17}{50}}$$

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