Percent Word Problem Review

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 20% of 50, calculate 50 x 0.20 = 10.

Front

What does it mean if 15% of a group is a certain category?

Back

It means that out of every 100 members of the group, 15 belong to that category.

Front

If there are 60 dogs at a shelter and 15% are puppies, how many puppies are there?

Back

9 puppies (60 x 0.15 = 9).

Front

In a school election, if James received 75% of the votes and 240 students voted, how many votes did he receive?

Back

180 votes (240 x 0.75 = 180).

Front

What is the formula to find the percentage of a part compared to a whole?

Back

Percentage = (Part / Whole) x 100.

Front

If 20% of the students in a classroom are 12 years old and there are 25 students, how many are 12 years old?

Back

5 students (25 x 0.20 = 5).

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the top number (numerator) by the bottom number (denominator) and multiply by 100.

Front

What percent of 30 cars finished a race if 12 finished?

Back

40% (12 / 30 x 100 = 40%).

Front

If Sarah earns $20 a day and spends 30% of it, how much does she spend?

Back

$6 (20 x 0.30 = 6).