Mastering Ratios

What is the ratio of 4 apples to 2 oranges?

• 2:1

• 3:1

• 4:2

• 1:2

If the ratio of boys to girls in a class is 3:5, how many girls are there if there are 12 boys?

• 20

• 15

• 30

• 25

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

• 1:3

• 2:1

• 3:2

• 2:3

If the ratio of cats to dogs is 1:4 and there are 20 dogs, how many cats are there?

• 15

• 2

• 10

• 5

Increase the ratio 2:3 by 1. What is the new ratio?

• 1:3

• 5:3

• 3:5

• 2:4

If the ratio of red to blue marbles is 5:2 and you have 35 red marbles, how many blue marbles do you have?

• 10

• 14

• 25

• 20

What is the missing ratio if the ratio of 10 to x is 5 to 2?

• 8

• 5

• 2

• 4

If the ratio of pencils to pens is 7:3 and you have 21 pencils, how many pens do you have?

• 15

• 12

• 9

• 6

Decrease the ratio 6:4 by 2. What is the new ratio?

• 3:2

• 1:3

• 2:1

• 4:3

If the ratio of students to teachers is 15:1 and there are 3 teachers, how many students are there?

• 45

• 15

• 60

• 30