# Ratios, Percent & Proportions: Help & Review Chapter Exam

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

### Page 1

#### Question 1 1. One hose can fill a swimming pool in 12 hours. A different, larger hose can fill the same pool in half the time. If both hoses are used together, how many hours will it take to fill the pool?

#### Question 2 2. A shirt was originally $35 and is now 25% off. What is the sale price?

#### Question 3 3. If the campers at Camp Grilled Meat prefer hot dogs to hamburgers by a ratio of 4:3, and they need 500 hot dogs, how many hamburgers will they need?

#### Question 4 4. How long will it take a car traveling at 32 mph to go 128 miles?

#### Question 5 5. One box of cereal costs $3. How many boxes can you buy with $15?

### Page 2

#### Question 6 6. Angela invested $4000 in an account that earns 5% interest yearly (simple interest). She forgets about it for 12 years. What is the TOTAL amount of money in the account after those 12 years?

#### Question 7 7. Farmer John can till his field 1.5 times faster than Farmer Bob. If they work together, they can till the field in 6 hours. How long would it take Farmer John on his own?

#### Question 8 8. A restaurant sells cheeseburgers to chicken sandwiches in a ratio of 7:2. If the restaurant sells 12 chicken sandwiches one day, how many cheeseburgers does it sell?

#### Question 9 9. Becky deposits $12,000 into an account with an interest rate of 7% that is compounded monthly. Rounding to the nearest dollar, what is the balance after 7 years?

#### Question 10 10. Cassie buys a box of 36 batteries for 15 dollars. Express the rate in its simplest form.

### Page 3

#### Question 11 11. A laptop's original price is $795. If it's on sale for 20% off, what is the sale price?

#### Question 12 12. Tom deposits $2,000 into an account with an interest rate of 2.5% that is compounded quarterly. Rounding to the nearest dollar, what is the balance in Tom's account after 5 years?

#### Question 13 13. All of the following are equivalent to 26% EXCEPT:

#### Question 14 14. Amy, Barry and Carter are building a fence. Together, it takes them 4 hours. If Amy worked alone, it would take her 14 hours. If Carter worked alone, it would take him 16 hours. Rounded to the nearest hour, how long would it take Barry to build the fence alone?

#### Question 15 15. Steve is trying to earn $300 in interest for a new guitar. He puts $2500 in an account that earns 2% interest yearly (simple interest). How long will it take to earn $300?

### Page 4

#### Question 16 16. If a class has 12 boys and 15 girls, what percent of the students are girls? Round your answer to the nearest whole number.

#### Question 17 17. The price of an airline ticket rose from $300 to $350. What is the percent increase, rounded to the nearest whole number?

#### Question 18 18. A burrito artist can make 14 burritos in 5 minutes. How many burritos can she make in one hour?

#### Question 19 19. Which of the following is the correct formula for compound interest?

#### Question 20 20. A bus travels 165 miles in 3 hours. What is its average speed?

### Page 5

#### Question 21 21. A train travels at 60 mph for 5 hours, then slows to 50 mph for 2 hours. How many miles does it travel?

#### Question 22 22. If it takes a team of three painters to paint a 7-room house in a day, how many painters are required to paint a 14-room house in a day?

#### Question 23 23. Kate is investing $1000 and wants to double it in 8 years. What yearly, simple interest rate will she need to find?

#### Question 24 24. Jennifer has three more dimes than nickels and three times as many quarters as nickels. If she has $7.50, how many quarters does she have?

#### Question 25 25. Olivia rides her bike at an average speed of 12 mph for 2 hours. How far does she go?

### Page 6

#### Question 26 26. Arnold invested $7000 in his account and he had $8050 after 4 years. What was the yearly interest rate (simple interest)?

#### Question 27 27. Sam works at a used car dealership, where he earns 7% commission on each sale. If he sells a car for $12,000 and another for $17,500, how much commission does Sam earn?

#### Question 28 28. Connor has seven more nickels than dimes and twice as many quarters as dimes. If he has $6.20, how many nickels does he have?

#### Question 29 29. In the compound interest formula, what does the n stand for?

#### Question 30 30. Sam deposits $5,000 into an account with an interest rate of 3% that is compounded monthly. Rounding to the nearest dollar, what is the balance after 10 years?

#### Ratios, Percent & Proportions: Help & Review Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!