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 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 to find 'x percent of y'?

Back

Finding 'x percent of y' means calculating how much x percent represents in relation to y.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100. For example, 1/4 = (1 ÷ 4) x 100 = 25%.

Front

What is 50% of 200?

Back

100

Front

If 30% of a class of 40 students are girls, how many girls are in the class?

Back

12 girls (30% of 40 = 0.30 x 40 = 12).

Front

What is 25% of 80?

Back

20

Front

How do you find the total when given a percentage and the part?

Back

To find the total, divide the part by the percentage (in decimal form). For example, if 20 is 25% of a total, the total is 20 ÷ 0.25 = 80.

Front

What is the formula to find the percentage?

Back

Percentage = (Part / Whole) x 100.

Front

If a student answered 16 out of 20 questions correctly, what percent did they get right?

Back

80% (16 ÷ 20 x 100 = 80%).