Percent Word Problems

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents how many parts out of 100 something is.

Front

How do you calculate the percentage of a number?

Back

To calculate the percentage of a number, multiply the number by the percentage (in decimal form) and then divide by 100.

Front

What is the formula to find the total number of items when given a percentage and the number of items that represent that percentage?

Back

Total = (Number representing percentage / Percentage) x 100.

Front

If 30% of a class of 40 students like math, how many students like math?

Back

12 students like math.

Front

What does it mean if a price is discounted by a certain percentage?

Back

It means that the price is reduced by that percentage of the original price.

Front

How do you find the final price after a discount and tax?

Back

Final Price = (Original Price - Discount) + Tax.

Front

If a TV costs $800 and is on sale for 25% off, what is the sale price?

Back

Sale Price = $800 - ($800 x 0.25) = $600.

Front

What is a raise in terms of salary?

Back

A raise is an increase in the amount of money earned, usually expressed as a percentage of the current salary.

Front

If Henry earns $10 per hour and gets a 10% raise, what is his new hourly wage?

Back

New Wage = $10 + ($10 x 0.10) = $11.

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by multiplying by 100.