Solving Proportions: Real-Life Ratio Challenges for 7th Graders

A recipe calls for 2 cups of flour for every 3 cups of sugar. If you want to use 6 cups of sugar, how many cups of flour do you need?

• 3 cups of flour

• 2 cups of flour

• 5 cups of flour

• 4 cups of flour

A car travels 150 miles on 5 gallons of gas. How many miles can it travel on 8 gallons of gas?

• 240 miles

• 180 miles

• 200 miles

• 300 miles

In a class, the ratio of boys to girls is 4:5. If there are 20 boys, how many girls are there in the class?

• 25

• 20

• 15

• 30

A map shows that 1 inch represents 10 miles. If two cities are 3 inches apart on the map, how far apart are they in real life?

• 25 miles

• 15 miles

• 20 miles

• 30 miles

A school is planning a field trip and has a ratio of 3 teachers for every 12 students. If there are 36 students going, how many teachers are needed?

• 15

• 12

• 9

• 6

A recipe requires 4 eggs for every 2 cups of milk. If you have 10 cups of milk, how many eggs do you need?

• 8

• 20

• 12

• 16

A fruit stand sells apples and oranges in a ratio of 5:3. If there are 40 apples, how many oranges are there?

• 24

• 30

• 18

• 20

In a painting, the ratio of red paint to blue paint is 7:2. If you have 21 cups of red paint, how many cups of blue paint do you need?

• 4 cups of blue paint

• 6 cups of blue paint

• 8 cups of blue paint

• 10 cups of blue paint

A car can travel 240 miles on 8 gallons of gas. How many gallons of gas will it need to travel 360 miles?

• 12 gallons

• 10 gallons

• 8 gallons

• 15 gallons

A recipe for cookies uses a ratio of 1 cup of sugar for every 2 cups of flour. If you want to use 4 cups of flour, how much sugar do you need?

• 4 cups of sugar

• 2 cups of sugar

• 1 cup of sugar

• 3 cups of sugar