Part Whole Percent

Front

What is a percent?

Back

A percent is a way to express a number as a fraction of 100. It is often used to compare ratios and understand proportions.

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

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

Back

The formula is: Whole = Part / (Percent in decimal form). For example, if the part is 30 and the percent is 15%, the whole is 30 / 0.15 = 200.

Front

If 20% of a number is 40, what is the number?

Back

The number is 200. (40 / 0.20 = 200)

Front

What does it mean if a part is 75% of the whole?

Back

It means that the part represents three-quarters of the total amount.

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.

Front

If a car's gas tank is 75% full and holds 20 gallons, how many gallons are in the tank?

Back

There are 15 gallons in the tank. (20 * 0.75 = 15)

Front

What is the relationship between part, whole, and percent?

Back

The relationship can be expressed as: Part = Whole x Percent. This means the part is a portion of the whole determined by the percent.

Front

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

Back

There are 18 girls in the class. (30 * 0.60 = 18)

Front

What is the percent of 50 out of 200?

Back

The percent is 25%. (50 / 200 = 0.25, then 0.25 * 100 = 25%)