Ratios Big Ideas Chapter Review

Two quantities are in the ratio 7:3. If the sum of the quantities is 100, what is the larger quantity?

• 70

• 75

• 30

• 25

If a car travels 60 miles in 1.5 hours, what is the ratio of miles to hours?

• 40:1

• 60:1.5

• 40:3

• 20:0.5

Solve the proportion.

• n=6

• n=24

• n=7

• n=8

A recipe calls for 2 cups of flour for every 3 cups of sugar. If you want to make a half batch, how many cups of flour do you need?

• 1

• 1.5

• 2

• 3

A school's student to teacher ratio is 20:1. If there are 400 students, how many teachers are there?

• 20

• 25

• 15

• 10

In a survey, the ratio of people who prefer tea to those who prefer coffee is 4:5. If 180 people were surveyed, how many prefer tea?

• 80

• 72

• 90

• 100

If the ratio of cats to dogs in a pet store is 3:4, and there are 12 cats, how many dogs are there?

• 16

• 15

• 14

• 13

Use ratio language to describe the relationship where for every 5 red marbles, there are 7 blue marbles.

• There are 5 red marbles for every 7 blue marbles.

• The ratio of red marbles to blue marbles is 5 to 7.

• Both A and B

• None of the above

The table shows the number of city blocks and houses on four different mail routes. Based on the relationship shown in the table, which statement is true?

• There are 8 times as many houses as city blocks on each mail route.

• There are 12 times as many houses as city blocks on each mail route.

• There are 24 times as many houses as city blocks on each mail route.

• There are 2 times as many houses as city blocks on each mail route.

The ratio of lemon juice to water in Ella's Delicious Lemonade is 3 cups : 5 cups. Audrey wants to make a triple batch. What ratio of lemon juice and water should she use AND how many cups of lemonade will it make?

• 9 cups juice : 15 cups water makes 24 cups of lemonade

• 6 cups juice : 10 cups water makes 16 cups of lemonade

• 9 cups juice : 15 cups water makes 8 cups of lemonade

• 9 cups juice : 5 cups water makes 24 cups of lemonade