Mastering Ratios and Proportions

What is the ratio of 2 apples to 3 oranges?

• 1:1

• 3:2

• 2:5

• 2:3

Simplify the ratio 8:12.

• 4:5

• 3:4

• 1:2

• 2:3

If the ratio of boys to girls in a class is 4:5, how many boys are there if there are 20 girls?

• 20

• 16

• 18

• 12

Compare the ratios 3:4 and 6:8. Which is greater?

• Both ratios are less than 1.

• 3:4 is greater than 6:8.

• Neither is greater; they are equal.

• 6:8 is greater than 3:4.

If 5 pencils cost $2, how much do 15 pencils cost?

• $10.00

• $4.00

• $8.00

• $6.00

What is the proportion of 10 to 15 compared to 2 to 3?

• Greater

• Not comparable

• Equal

• Less

If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to sugar?

• 2:3

• 1:2

• 2:1

• 3:2

Simplify the ratio 18:24.

• 4:5

• 2:3

• 1:2

• 3:4

If the ratio of cats to dogs is 1:4 and there are 12 dogs, how many cats are there?

• 3

• 15

• 6

• 9

Which is a better deal: 3 shirts for $30 or 5 shirts for $50?

• 3 shirts for $30 is cheaper.

• 5 shirts for $50 is a better deal.

• Both deals are equal.

• 3 shirts for $30 offers more variety.