Proportions and Ratios: 6th Grade Challenge Quiz

A recipe calls for 2 cups of flour for every 3 cups of sugar. If you want to make a batch with 6 cups of sugar, how many cups of flour do you need?

• 3 cups of flour

• 2 cups of flour

• 4 cups of flour

• 6 cups of flour

If a car travels 150 miles in 3 hours, what is the rate of speed in miles per hour?

• 50 miles per hour

• 30 miles per hour

• 75 miles per hour

• 100 miles per hour

A school has a ratio of 12 boys to 8 girls. What is the ratio of girls to boys in simplest form?

• 1:2

• 2:3

• 4:5

• 3:4

If a recipe requires 4 tablespoons of oil for every 5 cups of rice, how many tablespoons of oil are needed for 15 cups of rice?

• 10 tablespoons

• 8 tablespoons

• 12 tablespoons

• 16 tablespoons

A fruit stand sells apples at a rate of 5 apples for $3. How much would 20 apples cost?

• $12

• $6

• $9

• $15

In a class, the ratio of students who like math to those who like science is 3:2. If there are 30 students in total, how many like math?

• 12

• 18

• 24

• 15

A car can travel 240 miles on 8 gallons of gas. What is the car's fuel efficiency in miles per gallon?

• 30 miles per gallon

• 15 miles per gallon

• 40 miles per gallon

• 20 miles per gallon

If a map shows a scale of 1 inch to 50 miles, how many miles does 3 inches represent?

• 200 miles

• 150 miles

• 75 miles

• 100 miles

A recipe uses a ratio of 1 part vinegar to 4 parts oil. If you want to make 15 parts of the mixture, how much vinegar do you need?

• 5 parts of vinegar

• 4 parts of vinegar

• 2 parts of vinegar

• 3 parts of vinegar

If a train travels 180 miles in 2.5 hours, what is its average speed in miles per hour?

• 60 miles per hour

• 90 miles per hour

• 75 miles per hour

• 72 miles per hour