IXL | Percents of numbers: word problems

There are 96 seats on a train. 50% of the seats are empty. How many empty seats are there on the train?

empty seats

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Learn with an example

question

To celebrate the first day of school, Ezra brought in a tray of caramel brownies and walnut brownies. The tray had a total of 50 brownies, of which 60% were caramel. How many caramel brownies did Ezra bring?

caramel brownies

key idea

A percent is 1 part out of 100.

1%
is
equal
to
1
100
or
0.01.

Proportions can be used to solve percent problems.

part

whole

percent

100

solution

Find 60% of 50.

The whole is 50.

The percent is 60%.

Let n represent the part.

Write a proportion to solve for n.

100

100n

60 · 50

100n

3,000

100n ÷ 100

3,000 ÷ 100

Ezra brought 30 caramel brownies.

You could also find the answer by writing and solving an equation:

part	=	percentage of whole

n	=	60% · 50

n	=	0.6 · 50

n	=	30

Ezra brought 30 caramel brownies.

Looking for more? Try these:

Lesson: Percents

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Teacher tools

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Not feeling ready yet? These can help:

O.6Percents of numbers and money amounts

O.5Solve percent problems using strip models

Lesson: Percents

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