Real-Life Ratios: Solve Proportional Word Problems

A recipe calls for 2 cups of flour for every 3 cups of sugar. If you want to make a batch with 12 cups of sugar, how many cups of flour do you need?

• 8 cups of flour

• 4 cups of flour

• 6 cups of flour

• 10 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

If 4 notebooks cost $12, how much would 10 notebooks cost at the same rate?

• $24

• $36

• $15

• $30

A map has a scale of 1 inch to 20 miles. If two cities are 3 inches apart on the map, how far apart are they in real life?

• 100 miles

• 45 miles

• 30 miles

• 60 miles

A gardener uses 3 liters of water for every 5 plants. How much water is needed for 15 plants?

• 9 liters

• 6 liters

• 12 liters

• 15 liters

If a train travels 240 miles in 3 hours, what is the constant of proportionality for miles per hour?

• 80 miles per hour

• 90 miles per hour

• 100 miles per hour

• 60 miles per hour

A recipe requires 5 eggs for every 2 cups of milk. If you have 15 eggs, how many cups of milk can you use?

• 10 cups of milk

• 6 cups of milk

• 8 cups of milk

• 4 cups of milk

A car can travel 300 miles on 10 gallons of gas. How many gallons are needed to travel 450 miles?

• 15 gallons

• 12 gallons

• 20 gallons

• 10 gallons

If a school has a ratio of 3 teachers for every 20 students, how many teachers are needed for 100 students?

• 10 teachers

• 15 teachers

• 5 teachers

• 20 teachers

A painter can paint 4 rooms in 6 hours. How long will it take to paint 10 rooms at the same rate?

• 10 hours

• 20 hours

• 12 hours

• 15 hours