Understanding Ratios Quiz

What is a ratio in its simplest form?

• A comparison of three numbers

• A comparison of two quantities

• A fraction that cannot be reduced

• A decimal between 0 and 1

If the ratio of boys to girls in a class is 3:4, and there are 28 students total, how many boys are in the class?

• 16 boys

• 12 boys

• 7 boys

• 21 boys

In a bag of marbles, the ratio of red to blue marbles is 5:3. If there are 24 marbles in total, how many are red?

• 8 marbles

• 15 marbles

• 9 marbles

• 12 marbles

Which ratio is equivalent to 2:5?

• 8:15

• 4:10

• 6:15

• 10:25

In a recipe, the ratio of flour to sugar is 3:2. If you use 12 cups of flour, how many cups of sugar do you need?

• 6 cups

• 8 cups

• 18 cups

• 4 cups

What is the ratio of 15 to 25 in its simplest form?

• 5:3

• 3:5

• 15:25

• 1:2

If the ratio of cats to dogs at a pet store is 4:5, and there are 27 animals in total, how many are dogs?

• 12 dogs

• 15 dogs

• 10 dogs

• 17 dogs

Which represents the ratio 2:3 as a percent?

• 40%

• 66.7%

• 60%

• 75%

In a class of 30 students, the ratio of those who wear glasses to those who don't is 2:3. How many students wear glasses?

• 10 students

• 18 students

• 12 students

• 15 students

If you mix yellow and blue paint in a ratio of 1:2, how much blue paint do you need if you use 3 cups of yellow?

• 4 cups

• 1.5 cups

• 6 cups

• 2 cups