Mastering Proportions - 7.4D

A recipe calls for 2 cups of flour for every 3 cups of sugar. If you want to make a half batch, how many cups of sugar do you need?

• 1.5 cups

• 2 cups

• 4.5 cups

• 3 cups

• 5

• 6

• 7

• 8

A map scale shows that 1 inch = 5 miles. How many miles does 3.5 inches represent?

• 15 miles

• 17.5 miles

• 20 miles

• 22.5 miles

If a car travels 60 miles in 1 hour, how long will it take to travel 180 miles at the same speed?

• 2 hours

• 3 hours

• 4 hours

• 5 hours

A school's student to teacher ratio is 20:1. If there are 400 students, how many teachers are there?

• 20

• 25

• 30

• 40

If 8 gallons of paint can cover 320 square feet, how many gallons are needed to cover 400 square feet?

• 9 gallons

• 10 gallons

• 11 gallons

• 12 gallons

A recipe for cookies requires 3 cups of flour for every 4 cups of sugar. If you have 6 cups of flour, how many cups of sugar do you need?

• 6 cups

• 8 cups

• 10 cups

• 12 cups

A car travels 150 miles in 3 hours. At the same rate, how far will it travel in 5 hours?

• 200 miles

• 250 miles

• 300 miles

• 350 miles

In a classroom, there are 5 boys for every 4 girls. If there are 20 boys, how many girls are there?

• 12

• 16

• 20

• 24

A scale drawing of a building is made using the scale 1 inch = 10 feet. If the actual height of the building is 120 feet, how tall is the building in the scale drawing?

• 10 inches

• 12 inches

• 14 inches

• 16 inches