Percent Word Problems

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

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 * 0.20 = 10.

Front

What is the formula for finding the total amount after adding a percentage?

Back

Total Amount = Original Amount + (Original Amount * Percentage).

Front

How do you find what percent one number is of another?

Back

To find what percent one number (part) is of another number (whole), use the formula: (Part/Whole) * 100.

Front

If a bill is $44.20 and the tip is 20%, how much is the tip?

Back

The tip is $8.84.

Front

What percent of 20 is 14?

Back

14 is 70% of 20.

Front

If you pay $0.33 as tax on a total of $10.85, what percent is the tax?

Back

The tax is approximately 3%.

Front

In a survey, if 75% of 400 people prefer watching movies at home, how many people is that?

Back

300 people prefer watching movies at home.

Front

If 46% of surveyed students like McDonald's and 351 do not, how many students were surveyed?

Back

650 students were surveyed.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.