Percent Word Problem Review

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 '%'.

Front

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

Back

To find what percent one number (A) is of another number (B), use the formula: (A/B) * 100.

Front

If 30 is what percent of 40, how do you solve it?

Back

(30/40) * 100 = 75%. So, 30 is 75% of 40.

Front

In a school election, if James received 75% of the votes and 240 students voted, how do you find the number of votes he received?

Back

Multiply the total votes by the percentage: 240 * 0.75 = 180 votes.

Front

If 40 children represent 25% of the total children in a club, how do you find the total number of children?

Back

Use the formula: Total = Part / Percent. Total = 40 / 0.25 = 160 children.

Front

What does it mean if 20% of students in a classroom are a certain age?

Back

It means that out of every 100 students, 20 are that age.

Front

How do you calculate how many students are 12 years old if 20% of 25 students are 12?

Back

Calculate 20% of 25: 0.20 * 25 = 5 students.

Front

If Sarah earns $20 a day and spends 30% of her earnings, how do you find out how much she spent?

Back

Calculate 30% of $20: 0.30 * 20 = $6.

Front

What is the formula to find the percentage of a number?

Back

Percentage = (Part/Whole) * 100.

Front

How do you convert a fraction to a percent?

Back

Divide the numerator by the denominator and multiply by 100.