Percent Word Problems: Find Part, Whole, Percent

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is often used to compare ratios and express how much of a whole is represented.

Front

How do you find the part when given the whole and the percent?

Back

To find the part, multiply the whole by the percent (in decimal form). For example, if the whole is 200 and the percent is 25%, the part is 200 * 0.25 = 50.

Front

How do you find the whole when given the part and the percent?

Back

To find the whole, divide the part by the percent (in decimal form). For example, if the part is 30 and the percent is 15%, the whole is 30 / 0.15 = 200.

Front

How do you find the percent when given the part and the whole?

Back

To find the percent, divide the part by the whole and then multiply by 100. For example, if the part is 50 and the whole is 200, the percent is (50 / 200) * 100 = 25%.

Front

What is the formula to calculate the part from the whole and percent?

Back

Part = Whole x Percent (as a decimal).

Front

What is the formula to calculate the whole from the part and percent?

Back

Whole = Part / Percent (as a decimal).

Front

What is the formula to calculate the percent from the part and whole?

Back

Percent = (Part / Whole) x 100.

Front

If 60% of a class of 30 students are girls, how many girls are in the class?

Back

Part = 30 x 0.60 = 18 girls.

Front

If 25% of a pizza is left and there are 8 slices, how many slices were there originally?

Back

Whole = 8 / 0.25 = 32 slices.

Front

If 15 students in a class of 40 like math, what percent of the class likes math?

Back

Percent = (15 / 40) x 100 = 37.5%.