Percent of Numbers

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 50% means 50 out of 100.

Front

How do you find a percent of a number?

Back

To find a percent of a number, multiply the number by the percent (in decimal form). For example, to find 20% of 50, calculate 50 x 0.20 = 10.

Front

What is the formula to find the whole number when given a percent and a part?

Back

The formula is: Whole = Part / (Percent / 100). For example, if 75% of a number is 48, the whole number is 48 / 0.75 = 64.

Front

How do you convert a fraction to a percent?

Back

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

Front

What is 10% of 200?

Back

10% of 200 is calculated as 200 x 0.10 = 20.

Front

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

Back

30% of 40 is calculated as 40 x 0.30 = 12 girls.

Front

What is the relationship between percent, fraction, and decimal?

Back

Percent is a fraction with a denominator of 100. To convert a percent to a decimal, divide by 100. For example, 25% = 25/100 = 0.25.

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: Percent = (Part / Whole) x 100. For example, if 15 is part of 60, then Percent = (15 / 60) x 100 = 25%.

Front

What is 4% of 275?

Back

4% of 275 is calculated as 275 x 0.04 = 11.

Front

If 3 out of 30 students forgot their report cards, what percent is that?

Back

To find the percent, use the formula: Percent = (Part / Whole) x 100. Here, Percent = (3 / 30) x 100 = 10%.