Real-Life Ratios: Mastering Proportions and Equivalence

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?

• 6 cups of flour

• 4 cups of flour

• 3 cups of flour

• 2 cups of flour

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

• 200 miles

• 300 miles

• 180 miles

• 240 miles

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

• 30

• 15

• 20

• 25

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?

• 15 miles

• 20 miles

• 25 miles

• 30 miles

A recipe requires 3 eggs for every 2 cups of milk. If you have 12 eggs, how many cups of milk can you use?

• 8 cups of milk

• 4 cups of milk

• 10 cups of milk

• 6 cups of milk

A school has a ratio of 3 teachers for every 20 students. If there are 60 students, how many teachers are there?

• 15

• 9

• 12

• 6

If a car can travel 240 miles on 8 gallons of gas, how many gallons are needed to travel 360 miles?

• 12 gallons

• 8 gallons

• 15 gallons

• 10 gallons

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

• 18

• 24

• 20

• 30

In a painting, the ratio of blue paint to red paint is 2:3. If you have 12 liters of blue paint, how much red paint do you need?

• 12 liters

• 18 liters

• 15 liters

• 20 liters

A recipe for cookies uses 4 cups of flour for every 2 cups of sugar. If you want to make a batch using 10 cups of flour, how much sugar do you need?

• 5 cups of sugar

• 8 cups of sugar

• 2 cups of sugar

• 3 cups of sugar