Percent Of 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 x 0.20 = 10.

Front

What does it mean to find '30% of $20'?

Back

It means to calculate how much money is represented by 30% of $20. This is done by multiplying $20 by 0.30, which equals $6.

Front

If you have a coupon for 20% off, how do you calculate the savings?

Back

To calculate the savings, multiply the original price by the discount percentage (in decimal form). For example, for a $50 item with a 20% discount, savings = $50 x 0.20 = $10.

Front

What is the formula to find the total amount after applying a percentage discount?

Back

Total Amount = Original Price - (Original Price x Discount Percentage).

Front

How do you find the percentage of a total?

Back

To find the percentage of a total, divide the part by the whole and then multiply by 100. For example, if 30 out of 200 students are boys, the percentage of boys is (30/200) x 100 = 15%.

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by multiplying by 100. For example, 1/4 = 0.25, which is 25%.

Front

How do you determine what number a percentage represents?

Back

To determine what number a percentage represents, divide the percentage by 100 and then multiply by the total. For example, to find what number 20% of 50 is, calculate 50 x 0.20 = 10.

Front

What is a real-world example of using percentages?

Back

Calculating sales tax, discounts during shopping, or determining grades in school are all real-world examples of using percentages.

Front

If a shirt costs $40 and is on sale for 25% off, how much do you save?

Back

You save $10. (Calculation: $40 x 0.25 = $10.)