Exploring Ratios and Proportionality in Everyday Life

A recipe calls for 2 cups of flour for every 3 cups of sugar. If you have 8 cups of sugar, how many cups of flour do you need?

• 3 cups of flour

• 6 cups of flour

• 4 cups of flour

• 5.33 cups of flour

A car travels 150 miles on 5 gallons of gas. What is the constant of proportionality for miles per gallon?

• 25 miles per gallon

• 35 miles per gallon

• 40 miles per gallon

• 30 miles per gallon

A map shows that 1 inch represents 20 miles. If two cities are 3 inches apart on the map, how far apart are they in reality?

• 60 miles

• 40 miles

• 80 miles

• 100 miles

A school is planning a field trip and needs to rent buses. If each bus can hold 15 students, how many buses are needed for 120 students?

• 10

• 8

• 12

• 6

A gardener uses 4 liters of water for every 5 plants. How much water is needed for 25 plants?

• 20 liters

• 15 liters

• 25 liters

• 10 liters

A store sells 3 notebooks for $4.50. What is the cost of 10 notebooks?

• $10.50

• $18.00

• $15.00

• $12.00

A graph shows the relationship between hours studied and test scores. If a student studies for 6 hours and scores 90, what is the constant of proportionality?

• 10

• 12

• 18

• 15

A recipe requires 1.5 cups of milk for every 2 cups of flour. If you want to use 6 cups of flour, how much milk do you need?

• 4.5 cups of milk

• 3 cups of milk

• 6 cups of milk

• 2 cups of milk

A bike travels 30 miles in 2 hours. What is the constant of proportionality in miles per hour?

• 10 miles per hour

• 15 miles per hour

• 20 miles per hour

• 25 miles per hour

A fruit stand sells apples at a rate of $2.00 for 3 pounds. How much would 12 pounds of apples cost?

• $10.00

• $4.00

• $6.00

• $8.00