Ratios Quiz

Simplify the ratio 4:8.

• 3:6

• 2:4

• 1:2

• 5:10

If the ratio of boys to girls in a class is 3:5 and there are 24 students in total, how many boys are there?

• 12

• 15

• 18

• 9

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

• 4:3

• 1:2

• 3:2

• 2:3

If the ratio of the lengths of two sides of a rectangle is 3:5 and the perimeter is 32 cm, what is the length of the longer side?

• 12

• 8

• 15

• 10

A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. What is the ratio of red marbles to the total number of marbles?

• 5/3

• 1/2

• 2/10

• 5/10

If the ratio of the prices of two books is 2:5 and the first book costs $10, what is the price of the second book?

• 25

• $7

• $5

• $2

A recipe calls for 1 cup of milk and 2 cups of flour. If you want to make 4 cups of the recipe, how much milk do you need?

• 2

• 1

• 3

• 5

If the ratio of the areas of two squares is 4:9, what is the ratio of their side lengths?

• 1:2

• 3:4

• 5:6

• 2:3

A bag contains 6 red marbles, 4 blue marbles, and 8 green marbles. What is the ratio of blue marbles to the total number of marbles?

• 4/8

• 4/6

• 4/18

• 4/18

If the ratio of the heights of two people is 3:7 and the shorter person is 150 cm tall, what is the height of the taller person?

• 250

• 450

• 550

• 350