Ratio Quiz

Simplify the ratio 6:9.

• 1:2

• 4:5

• 2:3

• 3:2

If the ratio of boys to girls in a class is 3:5 and there are 24 boys, how many girls are there?

• 40

• 18

• 12

• 30

If the ratio of apples to oranges is 2:3 and there are 10 oranges, how many apples are there?

• 12

• 4

• 8

• 5

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

• 5 cups

• 12 cups

• 10 cups

• 15 cups

The ratio of the length to the width of a rectangle is 5:3. If the width is 6 cm, what is the length?

• 15 cm

• 4 cm

• 10 cm

• 8 cm

If the ratio of the number of red balls to blue balls is 4:7 and there are 28 blue balls, how many red balls are there?

• 7

• 10

• 20

• 14

The ratio of the number of students in Class A to Class B is 3:4. If there are 60 students in Class B, how many students are there in Class A?

• 30

• 50

• 45

• 20

A mixture of paint is made by mixing 3 parts of blue paint with 5 parts of yellow paint. How many liters of yellow paint are needed to make 15 liters of the mixture?

• 12 liters

• 9.375 liters

• 5 liters

• 3 liters

The ratio of the number of adults to children in a group is 2:5. If there are 20 children, how many adults are there?

• 15

• 12

• 18

• 8

A bag contains red, blue, and green marbles in the ratio 3:4:5. If there are 60 green marbles, how many marbles are there in total?

• 150

• 240

• 90

• 180