Mastering Ratios: Fun Problems with William Ruiz

William Ruiz has a collection of 24 marbles. The ratio of blue marbles to red marbles is 2:1. How many blue and red marbles does he have?

• 16 blue marbles and 8 red marbles

• 10 blue marbles and 14 red marbles

• 12 blue marbles and 12 red marbles

• 20 blue marbles and 4 red marbles

In a recipe, William Ruiz uses a ratio of 3 cups of flour to 2 cups of sugar. If he wants to use 9 cups of flour, how much sugar will he need?

• 10 cups of sugar

• 4 cups of sugar

• 6 cups of sugar

• 8 cups of sugar

William Ruiz is making fruit punch. The ratio of juice to water is 4:3. If he uses 12 cups of juice, how many cups of water does he need?

• 15 cups of water

• 9 cups of water

• 12 cups of water

• 6 cups of water

At a school event, the ratio of boys to girls is 5:3. If there are 40 boys, how many girls are there?

• 32

• 30

• 24

• 20

William Ruiz is planting flowers in a garden. The ratio of roses to tulips is 3:2. If he plants 15 roses, how many tulips does he plant?

• 5

• 10

• 12

• 20

In a class, the ratio of students who like math to those who like science is 7:5. If there are 35 students who like math, how many students like science?

• 20

• 15

• 30

• 25

William Ruiz has a collection of 60 books. The ratio of fiction to non-fiction books is 4:1. How many fiction and non-fiction books does he have?

• Fiction: 48, Non-Fiction: 12

• Fiction: 36, Non-Fiction: 24

• Fiction: 30, Non-Fiction: 30

• Fiction: 50, Non-Fiction: 10

For a school project, William Ruiz needs to mix paint in a ratio of 5 parts blue to 3 parts yellow. If he uses 25 parts of blue paint, how much yellow paint does he need?

• 15 parts yellow

• 5 parts yellow

• 20 parts yellow

• 10 parts yellow

In a basketball game, the ratio of points scored by Team A to Team B is 3:2. If Team A scores 45 points, how many points does Team B score?

• 25

• 30

• 35

• 40

William Ruiz is organizing a party. The ratio of adults to children is 2:3. If there are 12 adults, how many children are invited?

• 18

• 15

• 21

• 24