Percent Word Problem Review

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents how much of something there is out of a total of 100.

Front

How do you calculate the percent of a number?

Back

To calculate the percent of a number, multiply the number by the percent (as a decimal). For example, to find 20% of 50, calculate 50 * 0.20 = 10.

Front

What does it mean if 25% of a group is a certain number?

Back

It means that the number represents one-fourth of the total group. To find the total, divide the number by 0.25.

Front

If 12 out of 30 cars finished a race, how do you find the percent that finished?

Back

Divide the number of cars that finished (12) by the total number of cars (30) and multiply by 100. (12/30) * 100 = 40%.

Front

What is 15% of 60?

Back

To find 15% of 60, multiply 60 by 0.15. So, 60 * 0.15 = 9.

Front

How do you find the original price if a sale price is given as a percent of the original?

Back

If the sale price is 80% of the original price, divide the sale price by 0.80 to find the original price.

Front

What is 45% of 50?

Back

To find 45% of 50, multiply 50 by 0.45. So, 50 * 0.45 = 22.5.

Front

If 40 children represent 25% of a club, how do you find the total number of children in the club?

Back

Divide the number of children (40) by the percent (0.25). So, 40 / 0.25 = 160.

Front

What is the formula to convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100.

Front

How do you express a percent as a decimal?

Back

To express a percent as a decimal, divide the percent by 100. For example, 25% as a decimal is 0.25.