Ratios Rates and Percents

In a class of 25 students, 40% of the students have a pet. How many of the students have a pet?

• 8

• 10

• 15

• 62

Answer explanation

Katrina drinks 10 fluid ounces of water for every 20 minutes of exercise. At this rate, how many fluid ounces of water does Katrina drink for 60 minutes of exercise?

• 10

• 20

• 30

• 120

Answer explanation

Guillermo finished 4 math problems. These problems represent 20% of the assigned math problems. What is the total number of math problems Guillermo was assigned?

• 20

• 30

• 40

• 50

Answer explanation

At a restaurant, the ratio of cheeseburgers ordered to hamburgers ordered is 5:3. If 60 hamburgers are ordered, how many cheeseburgers are ordered?

• 20

• 36

• 50

• 100

Answer explanation

Mylie’s math test had 40 problems. Of these problems, 15% were word problems. How many word problems were on Mylie’s math test?

• 6

• 15

• 26

• 30

Answer explanation

Trisha typed 200 words in 4 minutes. At this rate, how many words could Trisha type in 15 minutes?

• 250

• 400

• 500

• 750

Answer explanation

In Ronna’s class, the ratio of girls to boys is 2:3. If there are 12 boys in Ronna’s class, how many girls are in Ronna's class?

• 6

• 8

• 12

• 18

Answer explanation

As a part of a survey, 300 girls were asked to name their favorite sport. The results showed that 24% of the girls named bowling as their favorite sport. How many of the girls in the survey named bowling as their favorite sport?

• 72

• 80

• 96

• 140

Answer explanation

Of the 250 sheep in a flock, 34% are white. What is the number of white sheep in the flock?

• 34

• 68

• 85

• 125

The ratio fo plain donuts to chocolate donuts in a donut shop is 13:7. There are 104 plain donuts. How many chocolate donuts are there?

• 42

• 47

• 56

• 64

Answer explanation