Ratios and Proportions: Fun with Real-Life Problems

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?

• 2 cups of flour

• 4 cups of flour

• 6 cups of flour

• 3 cups of flour

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?

• 30

• 15

• 20

• 25

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

• 180 miles

• 200 miles

• 300 miles

• 240 miles

A fruit basket contains apples and oranges in the ratio of 3:2. If there are 15 apples, how many oranges are there?

• 5

• 10

• 20

• 12

If 5 notebooks cost $10, how much would 8 notebooks cost?

• $14

• $20

• $12

• $16

A map shows that 1 inch represents 20 miles. If two cities are 3 inches apart on the map, how far apart are they in real life?

• 80 miles

• 40 miles

• 100 miles

• 60 miles

In a school, the ratio of teachers to students is 1:15. If there are 120 students, how many teachers are there?

• 5

• 10

• 12

• 8

A recipe requires 4 tablespoons of oil for every 2 cups of rice. How much oil is needed for 5 cups of rice?

• 6 tablespoons of oil

• 8 tablespoons of oil

• 12 tablespoons of oil

• 10 tablespoons of oil

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 bag contains red and blue marbles in the ratio of 2:3. If there are 30 blue marbles, how many red marbles are there?

• 15

• 20

• 25

• 35