Proportions and Cross-Multiplication Challenge for 7th Grade

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

• 10 cups of sugar

• 4 cups of sugar

• 8 cups of sugar

• 6 cups of sugar

A car travels 150 miles on 5 gallons of gas. How many gallons of gas will it need to travel 300 miles?

• 5 gallons

• 20 gallons

• 15 gallons

• 10 gallons

If 4 notebooks cost $12, how much would 10 notebooks cost?

• $15

• $30

• $24

• $36

A map shows that 2 inches represent 50 miles. How many miles does 6 inches represent?

• 150 miles

• 75 miles

• 200 miles

• 100 miles

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

• 9 teachers

• 15 teachers

• 12 teachers

• 6 teachers

If 5 pounds of apples cost $10, how much would 8 pounds cost?

• $14

• $12

• $16

• $20

A recipe requires 2 tablespoons of oil for every 1 cup of rice. How much oil is needed for 4 cups of rice?

• 6 tablespoons of oil

• 8 tablespoons of oil

• 10 tablespoons of oil

• 4 tablespoons of oil

If a car can travel 240 miles on 8 gallons of gas, how far can it travel on 12 gallons?

• 360 miles

• 240 miles

• 480 miles

• 300 miles

A store sells 3 shirts for $45. How much would 8 shirts cost?

• $90

• $75

• $120

• $150

If 7 pencils cost $3.50, how much would 10 pencils cost?

• $5.00

• $3.00

• $6.00

• $4.50