Ratios and Rates

An ostrich can run at a rate of 50 miles in 60 minutes. At this rate, how long would it take an ostrich to run 15 miles?

• 12 minutes

• 18 minutes

• 5 minutes

• 10 minutes

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets

A soup that serves 16 people calls for 4 cups of chicken broth. How many cups of chicken broth would you need to make an identical recipe that serves 32 people?

*Use a ratio table to find the answer*

• 6 cups

• 4 cups

• 8 cups

• 1 cup

Express the ratio as a fraction in the simplest form. 
6 dimes to 18 dimes

• ½

• ⅓

• ⅖

• ¼

Express the ratio as a fraction in the simplest form. 
14 footballs to 35 footballs 

• ½

• ⅓

• ⅖

• ¼

Complete the ratio tables

• 10, 15, 20

• 15, 20, 25

• 10, 35, 45

• 10, 15, 30

Kevin is mixing paint to make orange. The ratio of red paint to yellow paint is 3 oz to 5 oz. How much yellow paint should he mix with 9 oz of red paint?

• 15 oz

• 45 oz

• 30 oz

• 11 oz

What are three ways to write a ratio for the amount of dogs compared to the number of cats.

• 11 to 7

• 7:11

• 11/7

• 11:7

• 12 to 7

What is a comparison of two quantities that can be written in three ways?

Example (A to B, A:B, A/B)

• Rate

• Percent

• Ratio

• Fraction

Patrick has 2 black, 3 red, and 5 white toy cars. What is the ratio of red toy cars to all the toy cars?

• 3:5

• 3:11

• 1:3

• 3:10