Ratio and Proportion Quiz

The ratio of green to red marbles in a bag is 2:3. If there are 20 marbles in total, how many are red?

• 8

• 10

• 12

• 6

A drink is mixed in the ratio of juice to water as 1:4. If 2L of juice is used, how much water is needed?

• 0.5L

• 8L

• 6L

• 4L

The ratio of boys to girls is 5:6. If there are 55 boys, how many girls are there?

• 66

• 60

• 50

• 11

In a recipe, the ratio of sugar to flour is 2:5. If you use 10 cups of flour, how many cups of sugar do you need?

• 5 cups

• 10 cups

• 4 cups

• 2 cups

The ratio of cats to dogs is 3:2. If there are 15 cats, how many dogs are there?

• 5

• 3

• 15

• 10

In a bag, the ratio of green to red marbles is 2:3. If there are 20 marbles in total, how many are red?

• 8

• 6

• 10

• 12

A box contains blue and yellow beads in the ratio 3:5. If there are 40 beads in total, how many are yellow?

• 15

• 25

• 8

• 20

There are apples and oranges in a basket in the ratio 4:1. If there are 25 fruits in total, how many are apples?

• 5

• 4

• 20

• 12

In a crowd, the ratio of adults to children is 7:3. If there are 100 people total, how many are children?

• 70

• 30

• 10

• 20

A garden has white and purple flowers in the ratio 5:2. If there are 49 flowers, how many are purple?

• 5

• 35

• 14

• 21