Question

If 20% of a school was made up of out-of-district students last year, but the number of out-of-district students increased by 50% this year, without any change in total enrollment, what percent of the students is out-of-district this year?

Answer 1

30% is enrolled out-of-district.

Explanation:

According to the word problem, the number is increased by 50%.

To increase a number by a percent, multiply the number and the percent.

We can do this by changing both percents to decimals.

To change a percent to a decimal, divide it by 100.

`20/100 = 0.2`

`50/100=0.5`

The number is INCREASED by 50% so 0.5 would become 1.5.

`0.2 * 1.5=0.3`

0.3 = 30%.