Ratios & Proportions

The volleyball team won 6 games and lost four. What is the ratio of games won to number of games played?

• 3:2

• 2:3

• 3:5

• 5:3

Answer explanation

6 games won to 10 games total. Simplify.

A box of 12 donuts has 4 chocolate donuts and 8 plain donuts. What is the ratio of chocolate donuts to total donuts in the box?

• 1:2

• 1:3

• 2:3

• 3:2

Answer explanation

Chocolate to Total donuts. Simplify.

During a 40 hour work week, Sarah earned $280. Which proportion could be used to find the amount, x, she would ear if she only worked 30 hours?

• 40/280 = x/30

• 40/280 = 30/x

• 40/30 = x/280

• 30/280 = 40/x

Answer explanation

Create an H chart comparing $ and hours.

Mrs. Washington drives 315 miles in five hours. At this rate, how many miles does she drive in seven hours?

• 63

• 378

• 441

• 630

Answer explanation

Set up an H chart to find the unit rate and multiply by 7.

The ratio of blue marbles to yellow marbles is 2 to 5. Which combination of blue marbles to yellow marbles could be used?

• 2 blue marbles to 7 yellow marbles

• 10 blue marbles to 4 yellow marbles

• 4 blue marbles to 14 yellow marbles

• 8 blue marbles to 20 yellow marbles

Answer explanation

Multiply the number of blue marbles and the number of yellow marbles by the same number.

In a bag of jelly beans, one of every 3 jelly beans is red. If the bag has 48 jelly beans in it, how many are red?

• 45

• 16

• 12

• 44

Answer explanation

Set up an H chart comparing red jelly beans to total.

Ariel does 84 sit ups in 3 minutes. She does her sit ups at a constant rate. How many sit ups can Ariel do per minute?

• 252

• 28

• 87

• 25

Answer explanation

Set up an H chart comparing sit ups and minutes to find the unit rate.

If 6 out of every 10 students are going to the play off game, about how many students would be expected to be attending the game out of 450 students?

• 270

• 45

• 60

• 180

Answer explanation

Set up an H chart comparing students going to the game to total students. Solve.

If Mari makes 5 bracelets in 2 hours, how many bracelets could she make in 6 hours? Which proportion could be used to find x, the number of bracelets?

• 5/2 = 6/x

• 2/5 = x/6

• 2/x =6/5

• 5/2 = x/6

Answer explanation

Set up an H chart comparing bracelets and hours.

Vincent will buy 2 dozen cupcakes for a school party. Store A sells cupcakes for $12.00 per dozen. Store B sells cupcakes 3 for $2.70. Which of the following statements is true?

• Vincent will spend less money at Store A because $12.00 per dozen is less per cupcake than $2.70 for 3 cupcakes.

• Vicent will spend less money at Store B because $2.70 is a smaller amount of money than $12.00.

• Vincent will spend less money at Store A because $12.00 for a dozen cupcakes is less than $2.70 per cupcake.

• Vincent will spend less money at Store B because $2.70 for 3 cupcakes is less per cupcake than $12.00 per dozen.

Answer explanation

Set up an H chart for Store A to find the unit rate. Set up an H chart for Store B to find the unit rate. Compare.