Mastering Ratios: Comparing and Finding Missing Values

A recipe calls for 2 cups of flour and 3 cups of sugar. What is the ratio of flour to sugar? If you want to make a smaller batch using 1 cup of flour, how much sugar will you need?

• 1 cup of sugar

• 3.5 cups of sugar

• 1.5 cups of sugar

• 2 cups of sugar

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 car travels 150 miles using 5 gallons of gas. What is the ratio of miles traveled to gallons used? If another car travels 120 miles, how many gallons of gas does it use if it has the same ratio?

• 4 gallons

• 6 gallons

• 5 gallons

• 3 gallons

At a fruit stand, the ratio of apples to oranges is 3:2. If there are 30 apples, how many oranges are there?

• 10

• 25

• 15

• 20

In a basketball game, the ratio of points scored by Team A to Team B is 7:5. If Team A scores 42 points, how many points does Team B score?

• 35

• 25

• 40

• 30

A gardener has a ratio of 2 rose bushes for every 3 tulips. If there are 12 tulips, how many rose bushes are there?

• 4

• 6

• 8

• 10

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

• 10

• 12

• 8

• 6

A recipe requires a ratio of 1 part vinegar to 4 parts oil. If you use 2 cups of vinegar, how much oil do you need?

• 8 cups of oil

• 6 cups of oil

• 4 cups of oil

• 10 cups of oil

In a pet store, the ratio of cats to dogs is 5:3. If there are 15 cats, how many dogs are there?

• 15

• 6

• 12

• 9

A movie theater has a ratio of 3D to regular movies of 2:5. If there are 40 regular movies, how many 3D movies are there?

• 25

• 16

• 10

• 20