Ratio Word Problems

A box hold 20 marbles. There are 13 green marbles and the rest are yellow. What is the ratio of yellow marbles to green marbles.

• 20 to 13

• 7 to 13

• 13 to 7

• 33 to 13

Ms. Shields has 9 boys and 12 girls in her 1st block. What is the ratio of girls to total?

Joseph went to a farm with 23 animals. 9 were goats, 6 were sheep, and the rest were dogs. What is the ratio of dogs to goats?

A bag contains red chips and blue chips. The ratio of red chips to blue chips is 4 to 5. Which of the following statements could be true.

• There are exactly 5 red chips and 4 blue chips

• There are exactly 24 red chips and 30 blue chips

• There are exactly 12 red chips and 15 blue chips

• There are exactly 30 red chips and 24 blue chips

Two ingredients are mixed in a ratio of 5:3. If you have 40 grams of the first ingredient, how many grams of the second ingredient do you need?

• 24 grams

• 15 grams

• 30 grams

• 12 grams

A recipe calls for 2 cups of sugar for every 5 cups of flour. If a baker wants to use 10 cups of flour, how many cups of sugar are needed?

• 2 cups

• 4 cups

• 6 cups

• 8 cups

A school has 120 students, and the ratio of teachers to students is 1:30. How many teachers are there in the school?

• 3

• 4

• 5

• 6

A car travels 60 miles in 1.5 hours. What is the ratio of miles to hours in simplest form?

• 20:0.5

• 40:1

• 60:1.5

• 40:1

For every 8 ounces of water, a solution requires 2 ounces of a chemical. How many ounces of the chemical are needed for 32 ounces of water?

• 4 ounces

• 6 ounces

• 8 ounces

• 16 ounces

A fruit salad is made by mixing oranges and apples in the ratio 3:5. If there are 15 oranges, how many apples are there?

• 25

• 20

• 30

• 35