Ratios

Solve the ratio problem: If the ratio of boys to girls in a class is 2:3 and there are 20 boys, how many girls are there?

• 25

• 30

• 40

• 35

Write the ratio 4:5 in the form of a fraction.

• 4:5

• 5/4

• 4/5

• 0.8

In a recipe, the ratio of sugar to flour is 1:3. If you need 2 cups of sugar, how many cups of flour do you need?

• 6

• 4

• 8

• 10

Express the ratio 3:7 in the form of a percentage.

• 30%

• 50%

• 21%

• 45%

A map has a scale of 1:25000. If two cities are 5 cm apart on the map, what is the actual distance between them?

• 5000 meters

• 1250 meters

• 750 meters

• 2500 meters

If the ratio of red balls to blue balls in a bag is 2:5 and there are 14 red balls, how many blue balls are there?

• 35

• 25

• 42

• 18

Convert the ratio 5:8 into a decimal.

• 0.385

• 0.53

• 0.625

• 0.72

In a fruit basket, the ratio of apples to oranges is 3:4. If there are 15 oranges, how many apples are there?

• 11

• 13

• 9

• 17

A car travels 120 miles in 3 hours. What is the ratio of distance to time?

• 50 miles per hour

• 45 miles per hour

• 40 miles per hour

• 30 miles per hour

If the ratio of students to teachers in a school is 25:2, and there are 500 students, how many teachers are there?

• 37

• 45

• 40

• 35