Percent of a Whole Number Word Problems

If 30% of a number is 45, what is the number?

(a)  

• 165

• 100

• 150

• 120

If 15% of a class of 40 students are absent, how many students are present?

(a)  

• 38

• 34

• 36

• 32

If 25% of a number is 20, what is the number?

(a)  

• 80

• 40

• 100

• 60

What is 20% of 80?

(a)  

• 12

• 18

• 16

• 25

• A
• B
• C
• D

There are 32 students in a class.  Fifteen of those students are girls. What percent are girls? Round to the nearest tenth)

• 46.9%

• 53.1%

• 47%

• 53%

Mateo has to spend $9000 on expenses each year. If that amount of money is 50% of her salary, how much does Mateo make per year? What part of the percent proportion are you missing?

• Part

• Whole

• Percent

There are 453 students eating lunch in the cafeteria. Of those, 308 students brought lunch from home. Which equation can be used to determine the percent of students who brought their lunch from home?

• 453 = x*308

• 308 = x*453

• x = 4.53*308

• x = 3.08*453

Dr. Hall files 320 insurance claims every month. If 5% of those claims are rejected, how many of the claims are accepted?

• 304

• 16

• 300

• 20

In the Central City Grand Prix, out of 30 cars that started the race, 12 of them finished. What percent of the cars finished the race?

• 40%

• 20%

• 60%

• 80%