Unit Rates and Ratios: A 6th Grade Challenge

A car travels 240 miles in 4 hours. What is the unit rate in miles per hour?

• 80 miles per hour

• 60 miles per hour

• 70 miles per hour

• 50 miles per hour

If a recipe calls for 3 cups of flour to make 12 cookies, how many cups of flour are needed to make 30 cookies?

• 7.5 cups

• 4.5 cups

• 10 cups

• 5 cups

A store sells 5 apples for $2. What is the cost of one apple?

• $1.00

• $0.40

• $0.50

• $0.25

If a bike can travel 15 miles in 1 hour, how far can it travel in 3 hours at the same rate?

• 30 miles

• 45 miles

• 75 miles

• 60 miles

A class has 24 students, and the ratio of boys to girls is 2:1. How many girls are in the class?

• 10

• 8

• 12

• 6

If a car uses 10 gallons of gas to travel 250 miles, what is the unit rate of miles per gallon?

• 15 miles per gallon

• 20 miles per gallon

• 30 miles per gallon

• 25 miles per gallon

A recipe requires 4 cups of sugar for every 6 cups of flour. What is the ratio of sugar to flour?

• 4:5

• 3:4

• 2:3

• 1:2

If a runner completes a 5K race in 25 minutes, what is their pace in minutes per mile?

• 9.00 minutes per mile

• 10.20 minutes per mile

• 7.50 minutes per mile

• 8.06 minutes per mile

A fruit stand sells oranges at a ratio of 3 oranges for every 2 lemons. If there are 12 lemons, how many oranges are there?

• 12 oranges

• 24 oranges

• 6 oranges

• 18 oranges

If a train travels 180 miles in 3 hours, what is the speed of the train in miles per hour?

• 45 miles per hour

• 90 miles per hour

• 75 miles per hour

• 60 miles per hour