# Cassandra read 25 pages of a 125-page book. What percent of the book did she read?

Jun 9, 2018

The percentage is 20%.

#### Explanation:

25 pages out of 125 means she has read $\frac{25}{125} = \frac{1}{5}$ of the book

As percent means "per hundred", we must convert this to hundred parts, i.e. $\frac{p}{100}$ As $\frac{1}{5} = \frac{20}{100}$,
the percentage is 20%.