Lesson 46: Rates — Practice Questions

1. 1. A 50-ounce bottle of laundry detergent costs $6.50. A 100-ounce bottle costs $12.00. Which bottle is the better buy?

   • A. The 50-ounce bottle is the better buy.
   • B. The 100-ounce bottle is the better buy.
   • C. Both are an equally good buy.
   • D. There is not enough information to decide.

2. 2. A small bag of chips costs $2.50 and a large bag costs $4.00. Which statement is always true about finding the better buy?

   • A. The small bag is the better buy because the total price is lower.
   • B. The large bag is the better buy because it contains more chips.
   • C. You must know the weight of each bag to calculate and compare the cost per ounce.
   • D. You subtract the prices to find the difference in value.

3. 3. A train travels at an average speed of 80 miles per hour for 4 hours. What is the total distance the train traveled in miles? ___

4. 4. A cyclist completes a 72-mile race in 4 hours. What was the cyclist's average speed in miles per hour?

   • A. 16 miles per hour
   • B. 18 miles per hour
   • C. 20 miles per hour
   • D. 22 miles per hour

5. 5. An airplane flies at a constant speed of 500 miles per hour. How many hours will it take to travel a distance of 1500 miles? ___

6. 6. A hiker walks at an average speed of 3 miles per hour for 2 hours and 30 minutes. What is the total distance the hiker covered?

   • A. 6 miles
   • B. 7.5 miles
   • C. 9 miles
   • D. 6.5 miles

7. 7. If a car's speed is doubled while the travel time remains the same, how does the total distance traveled change?

   • A. It is halved
   • B. It stays the same
   • C. It is doubled
   • D. It is quadrupled