Mastering Ratios and Unit Rates in Everyday Math

A recipe calls for 2 cups of flour for every 3 cups of sugar. What is the constant of proportionality between flour and sugar?

• 1/3

• 3/2

• 2/3

• 4/3

If a car travels 150 miles on 5 gallons of gas, what is the unit rate of miles per gallon?

• 40 miles per gallon

• 25 miles per gallon

• 35 miles per gallon

• 30 miles per gallon

A school has a ratio of 4 teachers for every 20 students. What is the constant of proportionality for teachers to students?

• 0.2

• 0.1

• 0.5

• 1.0

If a fruit stand sells 3 apples for $1.50, what is the cost of one apple?

• $0.75

• $0.50

• $1.00

• $0.25

A bike can travel 60 miles in 2 hours. What is the constant of proportionality in miles per hour?

• 75 miles per hour

• 30 miles per hour

• 45 miles per hour

• 15 miles per hour

If a painter can paint 5 rooms in 10 hours, how many rooms can he paint in 1 hour?

• 1 room

• 0.5 rooms

• 2 rooms

• 3 rooms

A recipe requires 4 eggs for every 2 cups of milk. What is the ratio of eggs to milk?

• 1:2

• 2:1

• 3:1

• 4:2

If a runner completes 10 kilometers in 50 minutes, what is the unit rate in kilometers per hour?

• 8 kilometers per hour

• 10 kilometers per hour

• 15 kilometers per hour

• 12 kilometers per hour

A car can travel 240 miles on 8 gallons of gas. What is the constant of proportionality for miles per gallon?

• 20 miles per gallon

• 40 miles per gallon

• 15 miles per gallon

• 30 miles per gallon

If a store sells 12 oranges for $3, what is the price of one orange?

• $0.75

• $0.25

• $1.00

• $0.50