Percentage Word Problems and Concepts

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare proportions.

Front

How do you calculate the percentage of a part compared to a whole?

Back

To calculate the percentage of a part compared to a whole, use the formula: \( \text{Percentage} = \left( \frac{\text{Part}}{\text{Whole}} \right) \times 100 \% \)

Front

If a mail carrier delivers 6,300 pieces of mail and 1,260 are junk mail, what percent of the mail is NOT junk mail?

Back

80% of the mail is NOT junk mail.

Front

If 50% of a budget is spent on rent, how do you find the total budget?

Back

Use the formula: \( \frac{\text{Amount}}{\text{Percentage}} = \text{Total} \). For example, if rent is $420, then total budget = \( \frac{420}{0.5} = 840 \).

Front

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

Back

The formula is: \( \text{Percentage} = \left( \frac{\text{Number in group}}{\text{Total number}} \right) \times 100 \% \)

Front

In a theatre class with 24 actors and 16 set designers, what percent are set designers?

Back

40% of the theatre class are set designers.

Front

How do you find out what percent of a total has been completed?

Back

Use the formula: \( \text{Percentage completed} = \left( \frac{\text{Completed amount}}{\text{Total amount}} \right) \times 100 \% \)

Front

If Mrs. Siraj has read 50 out of 420 pages, what percent has she read?

Back

She has read approximately 12% of the book.

Front

How do you calculate the total number of employees if you know the percentage of a specific group?

Back

Use the formula: \( \text{Total} = \frac{\text{Number in group}}{\text{Percentage}} \)

Front

If 6% of employees are over 50 years old and there are 420 such employees, how many total employees are there?

Back

There are 7000 total employees.