Ratio and Proportions Quiz

Solve the ratio 3:4. What is the value of each part if the total is 28?

• 10, 14

• 12, 16

• 8, 12

• 15, 20

The ratio of the length to the width of a rectangle is 5:3. If the width is 12, what is the length?

• 25

• 10

• 15

• 20

In a bag of marbles, the ratio of red to blue marbles is 2:5. If there are 35 blue marbles, how many red marbles are there?

• 30

• 25

• 20

• 14

If 4 pencils cost $2, what is the cost of 10 pencils?

• $8

• $3

• $5

• $7

A recipe calls for 2 cups of flour and 3 cups of sugar to make 24 cookies. How much flour is needed to make 36 cookies?

• 5 cups

• 1 cup

• 4 cups

• 3 cups

If 5 workers can build a wall in 10 days, how many workers are needed to build the same wall in 5 days?

• 15 workers

• 10 workers

• 3 workers

• 8 workers

It takes 8 hours for 12 machines to complete a job. How long will it take for 18 machines to complete the same job?

• 3.5 hours

• 10 hours

• 6.75 hours

• 5.33 hours

A car travels 240 miles in 4 hours. How long will it take to travel 360 miles at the same speed?

• 3 hours

• 6 hours

• 8 hours

• 10 hours

If 3 bags of popcorn cost $12, how much will 8 bags cost?

• $10

• $16

• $24

• $32

If a recipe calls for 3 cups of sugar to make 36 cookies, how much sugar is needed to make 24 cookies?

• 2 cups

• 1.5 cups

• 4 cups

• 2.5 cups