Rates and Ratios

Oliver, Mia, and Ethan are participating in a relay race. They need to cover a distance of 400 meters in 5 minutes. What is the unit rate they should maintain to complete the race on time?

• 80 meters per minute

• 60 meters per minute

• 100 meters per minute

• 20 meters per minute

Charlotte, Henry, and Aria are discussing examples of rates. Can you help them identify a correct example?

• The relationship between the number of hours worked and the amount of money spent is an example of a rate.

• The relationship between the number of hours studied and the grade earned on a test is an example of a rate.

• The relationship between the number of miles driven and the amount of gas consumed is an example of a rate.

• The relationship between the number of hours worked and the amount of money earned, assuming a constant hourly wage, is an example of a rate.

Liam, Arjun, and Priya are having a debate about simplifying ratios. They came across the ratio 6:12. Can you help them simplify it?

• 2:4

• 3:6

• 5:10

• 1:2

What is the unit rate if 20 apples cost $5?

• $0.30 per apple

• $0.20 per apple

• $0.25 per apple

• $0.15 per apple

Samantha runs 3 miles in 30 minutes. What is her unit rate in miles per minute?

• 0.3 miles per minute

• 3 miles per minute

• 10 miles per minute

• 0.1 miles per minute

Which of the following is an example of a unit rate: 5 miles in 2 hours 10 miles in 1 hour 15 miles in 3 hours

• D) 20 miles in 2 hours

• 5 miles in 3 hours

• 10 miles in 1 hour

• 15 miles in 1 hour

If a recipe calls for 2 cups of flour and 1 cup of sugar, what is the ratio of flour to sugar?

• 2:1

• 1:1

• 1:2

• 3:1

A bag of marbles has a ratio of 3 blue marbles to 5 red marbles. If there are 24 red marbles, how many blue marbles are there?

• 10

• 14

• 20

• 18

If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to sugar in simplest form?

• 5/2

• 2/3

• 3/2

• 1/4

If a car travels 240 miles in 4 hours, what is the unit rate in miles per hour?

• 60 miles per hour

• 30 miles per hour

• 15 miles per hour

• 120 miles per hour