Percent Word Problems

Front

What is a percent?

Back

A percent is a way to express a number as a fraction of 100. It is often used to compare quantities.

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 40% of students like pizza?

Back

It means that out of every 100 students, 40 students enjoy pizza.

Front

How do you find the total number of students if you know the percentage that like pizza?

Back

If 40% of students like pizza and 300 students like pizza, you can find the total by dividing 300 by 0.40, which equals 750 total students.

Front

What is a discount?

Back

A discount is a reduction in the regular price of an item, often expressed as a percentage.

Front

How do you calculate the sale price after a discount?

Back

To find the sale price, subtract the discount amount from the original price. For example, if a coat costs $45 and is 25% off, the discount is $11.25, so the sale price is $45 - $11.25 = $33.75.

Front

What is the formula to calculate the percentage score on a test?

Back

The formula is (Number of Correct Answers / Total Questions) x 100. For example, if Dean got 45 out of 50 correct, his score is (45/50) x 100 = 90%.

Front

What is a tip?

Back

A tip is a small amount of money given to someone for their service, often calculated as a percentage of the total bill.

Front

How do you calculate a tip based on a percentage?

Back

To calculate a tip, multiply the total bill by the tip percentage (in decimal form). For a $115 bill with a 15% tip, calculate 115 x 0.15 = $17.25.

Front

What does it mean if 4% of students do not like science class?

Back

It means that out of every 100 students surveyed, 4 students do not enjoy science class.