Ratio and Proportion

The ratio of dogs to cats at a shelter is 3:5. Which is an equivalent ratio?

• 6:10

• 9:16

• 20:12

• 25:15

Which ratio is equivalent to 7:9?

• 17:19

• 21:29

• 28:36

• 36:48

The ratio of pencils to erasers is 2:3. Which of these is an equivalent ratio?

• A) 4:5

• B) 6:19

• C) 8:12

• D) 10:15

A recipe calls for 3 cups of flour to make 48 cookies. Is this a proportional relationship?

• Yes, the ratio is consistent

• No, the ratio changes

• Not enough information

• The relationship depends on the baker

The ratio of students to teachers in a school is 25:1. If there are 250 students, how many teachers are there?

• 10 teachers

• 15 teachers

• 12 teachers

• 8 teachers

What ratio is equivalent to 5:3?

• 6:10

• 15:9

• 12:20

• 25:18

In a recipe, the ratio of flour to sugar is 2:3. Which of these is an equivalent ratio?

• 4:5

• 6:10

• 8:10

• 10:15

What ratio is equivalent to 1:4?

• 2:6

• 3:12

• 5:24

• 4:18

If the ratio of red cars to blue cars is 5:2, which is an equivalent ratio?

A store sells 5 pencils for $2.50. What is the cost of 15 pencils?

• $5.00

• $7.50

• $6.00

• $4.50