Unit Rate Word Problems

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. For example, if a car travels 300 kilometers in 5 hours, the unit rate is 60 kilometers per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the unit rate from a word problem?

Back

To find the unit rate, divide the total quantity by the number of units. For example, if 12 apples cost $3, the unit rate is $3 ÷ 12 apples = $0.25 per apple.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Seth prepared 63 kilograms of dough after working 9 hours. How many hours did Seth work if he prepared 77 kilograms of dough?

Back

11 hours

Tags

CCSS.6.RP.A.3B

Front

Samantha cycled a total of 32 kilometers by making 16 trips to work. After 31 trips to work, how many kilometers will Samantha have cycled in total?

Back

62 kilometers

Tags

CCSS.3.OA.A.3

Front

Emily jarred 9 liters of jam after 3 days. How many days does Emily need to spend making jam if she wants to jar 12 liters of jam in all?

Back

4 days

Tags

CCSS.3.OA.D.8

Front

Danny read a total of 24 books over 4 months. After belonging to the book club for 8 months, how many books will Danny have read in all?

Back

48 books

Tags

CCSS.3.OA.D.8

Front

Edna bought 8 souvenirs during 2 days of vacation. How many days will Edna have to spend on vacation before she will have bought a total of 16 souvenirs?

Back

4 days

Tags

CCSS.3.OA.A.3

Front

What is the formula to calculate the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a recipe requires 4 cups of flour for 2 cakes, how much flour is needed for 1 cake?

Back

2 cups of flour.

Tags

CCSS.6.RP.A.3B

Front

How can you use a proportion to solve unit rate problems?

Back

Set up a proportion comparing the known unit rate to the unknown rate, then cross-multiply and solve.

Tags

CCSS.7.RP.A.3