Ratios Review

Identify the ratio of boys to girls in a class of 24 students if there are 16 boys.

• 3:1

• 2:1

• 4:1

• 5:1

In a bag of marbles, the ratio of red marbles to blue marbles is 3:5. If there are 24 blue marbles, how many red marbles are there?

• 20

• 10

• 18

• 14

Solve the following ratio problem using a table: A recipe calls for 2 cups of flour for every 3 cups of sugar. How much flour is needed if 9 cups of sugar are used?

• 6 cups of flour

• 3 cups of flour

• 12 cups of flour

• 5 cups of flour

Use a table to solve the following ratio problem: A car travels 180 miles on 6 gallons of gas. How far can it travel on 10 gallons of gas?

• 150 miles

• 300 miles

• 240 miles

• 100 miles

Calculate the equivalent ratio to 3:5 if the second term is 25.

• 15:25

• 2:25

• 5:25

• 3:25

If the ratio of the lengths of two ropes is 4:7, what is the ratio of their widths?

• 1:2

• 3:5

• 5:9

• 4:7

Write the ratio 5:8 in three different ways using ratio language and notation.

• 5:8

• 5/8

• 5-8

• 5/8, 5 to 8, 5:8

Express the ratio 2:3 as a fraction in simplest form.

• 1/4

• 5/7

• 2/3

• 3/2

Apply ratios to a real-life situation: If a recipe calls for 2 cups of flour and 3 cups of sugar to make 12 cookies, how much flour and sugar are needed to make 24 cookies?

• 3 cups of flour and 4 cups of sugar

• 6 cups of flour and 9 cups of sugar

• 5 cups of flour and 7 cups of sugar

• 4 cups of flour and 6 cups of sugar

A map has a scale of 1 inch represents 5 miles. If two cities are 3.5 inches apart on the map, how far are they from each other in real life?

• 3.5 miles

• 17.5 miles

• 10 miles

• 25 miles