Ratio and Proportion

Jane sold 20 toys to her classmates and Josh sold 32 toys to his classmates. What is the ratio of the number of the toys Jane sold to the number of toys Josh sold?

• 5:8

• 8:5

• 10:16

• 16:10

Which ratios are equal to 3:16?

• 6:32,18:32

• 6:32,18:96

• 9:32,18:16

• 9:32,24:82

Gabby went to a restaurant with her brother, and the total cost of the meal is $100, work out how much each has to pay, knowing the ratio is 16:8.

• $66.66,$44.44

• $33.33,$22.22

• $22.22,$44.44

• $66.66,$33.33

Dave, Bob and Jia go to a concert together, the total of the tickets is $150, the ratio is 1:2:7, calculate the money each person needs to pay.

• $15,$30,$105

• $15,$23,$50

• $15,$32,$45

• $15,$18,$97

Simplify the ratio 75:10, 72:16:32, 140:112

• 15:2, 1:2:3, 18:5

• 15:2, 9:2:4, 5:4

• 15:2, 6:5:1, 9:1

• 15:2, 4:3:5, 2:3

Simplify these ratios:

1.6kg:800g = ?

The pet shop has 5 dogs, 4 cats and 8 hamsters. What is the ratio of cats to all the pets?

• 4/5

• 17/4

• 4:17

• 4:8

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs.  Write and solve a proportion to find the number c of cats.

• c=16

• c=21

• c=18

• c=15

In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?

• 18

• 20

• 50

• 42

Three quarters of the junior members of a tennis club are boys and the rest are girls. What is the ratio of boys to girls?

• 3:4

• 4:3

• 1:3

• 3:1