Percent Basics
Percents & Proportions
Real-World Percent Problems
Finding the Whole
Challenge Problems
100

What is 25% of 80?

20

100

What proportion can be used to find 30% of 120?

30/100 = x/120

100

A restaurant bill is $50. If you tip 20%, how much is the total cost?

$60

100

If 12 is 20% of a number, what is the whole?

60

100

A farmer’s field is 40% planted with corn. If 12 acres are planted with corn, what is the total size of the field?

30 acres

200

If 60 is 75% of a number, what is the whole?

80

200

If 24 is 60% of a number, what is the number?

40

200

A jacket originally costs $80. It is on sale for 25% off. How much is the discount?

$20

200

45 is 75% of what number?

60

200

A TV originally costs $500 and is discounted 10%, then discounted another 10% off the new price. What is the final price?

$405

300

Rewrite 40% as fraction in simplest form.

2/5

300

A student earned 18 out of 25 points on a quiz. What percent did they score?

72%

300

An item costs $120 before tax. If the sales tax is 8%, what is the total price?

$129.60

300

A student has read 30% of a book and has read 90 pages. How many pages are in the book?

300 pages

300

A school library has 1,200 books. If 35% are fiction, how many books are fiction?

420 books

400

What is 15% of 200?

30

400

What percent of 150 is 90?

60%

400

A school has 500 students. If 35% are in the band, how many students are in the band?

175 students

400

A company’s profit is 35% of total revenue. If the profit is $7,000, what is the total revenue?

$20,000

400

A basketball player made 72% of their free throws. If they made 36 free throws, how many did they attempt?

50 free throws

500

If a store sells an item for $150 and it is discounted by 20%, what is the new price?

$120

500

A recipe calls for 250g of flour. If you only have 40% of that, how much flour do you have?

100 g

500

A store increases the price of a $90 phone by 15%. What is the new price?

$103.50

500

In a class, 15 students have completed their projects. If this is 60% of the class, how many students are in the class?

25

500

A sweater is on sale for 30% off, bringing the price down to $42. What was the original price?

$60

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