Ratio and Proportion Problems

Amanda has finished 9 problems on her math study guide. If this is 75% of the problems on her study guide, how many problems are on the entire study guide? Use a proportion to solve.

• 15 problems

• 12 problems

• 3 problems

• 69 problems

Of the students in 6th grade, 3/5 pack their lunch. What percent of students pack their lunch?

• 70%

• 66.7%

• 60%

• 54%

In the United States, 13 out of every 20 cans are recycled. What percent of cans are recycled?

• 55%

• 63%

• 65%

• 85%

• 9:5

• 9:4

• 81

• 81/36

• 7

• 70

• 18

• 30

• 4:5

• 5:4

• 6:3

• 5:3

?

• 49

• 48

• 42

• 51

• 0

• 8

• 7

• 6

• 3:10

• 60

• 10:3

• 78

?

• 35

• 32

• 36

• 31