Ratios and Proportions Review

If there are 3 red marbles for every 4 blue marbles in a bag, how many red marbles are there if there are 16 blue marbles?

• A) 9

• B) 12

• C) 21

• D) 24

A recipe calls for 2 cups of flour for every 3 cups of sugar. What is the ratio of cups of sugar to cups of flour?

• A) 2 : 3

• B) 3 : 2

• C) 2 : 5

• D) 3 : 5

Complete the ratio table:

• A) 15

• B) 20

• C) 25

• D) 30

For every 8 students who prefer vanilla ice cream, there are 5 who prefer chocolate. If 40 students prefer vanilla, how many prefer chocolate?

• A) 20

• B) 25

• C) 30

• D) 35

A map uses a scale where 1 inch represents 10 miles. How many inches would represent 150 miles?

• A) 10

• B) 15

• C) 20

• D) 25

In a class, the ratio of boys to girls is 4:5. If there are 20 boys, how many girls are there?

• A) 16

• B) 20

• C) 25

• D) 30

A bag contains 18 red candies and 12 green candies. What is the ratio of red candies to green candies?

• A) 1:2

• B) 2:3

• C) 3:2

• D) 3:4

If a car travels 60 miles in 1.5 hours, what is the ratio of miles to hours?

• A) 30:1

• B) 40:1

• C) 60:1

• D) 40:1.5

Create a ratio equivalent to 6:8.

• A) 3:4

• B) 9:12

• C) 12:16

• D) All of the above

A fruit salad recipe requires 2 apples for every 3 oranges. If you want to make a large batch using 12 apples, how many oranges do you need?

• A) 8

• B) 12

• C) 16

• D) 18