Percentage of Quantities

What is 25% of 2 hours?

• 45 minutes

• 30 minutes

• 0.3 hours

• 0.5 minutes

What is 10% of $250

• $2.50

• $25

• $250

• $2500

Emma's number of friends on Facebook grew by 5% in the last month.  If she has 575 friends now, how many did she have last month?

• 548

• 549

• 550

• A
• B
• C
• D

The number of kids in a playground grew by 10% in thirty minutes.  If there are 77 kids in the park now, how many were there before?

• 70

• 71

• 72

My class size has increased by 35% this year. I had 20 students last year, how many do I have now?

• 23

• 25

• 27

• 29

Reduce 360 by 10%

• 342

• 324

• 328

• 300

Latest research indicates that 84% of cellphone users describe their cellphone as "something they can't imagine living without." If an office has 572 employees, estimate what 84% of that is by rounding each to the nearest tens.

• 67

• 125

• 171

• 286

Mrs. Govande gave a difficult math test. 77% of her students in 4 classes passed it. If she has a total of 45 students, how many students passes. Round off to the nearest whole number.

• 2

• 3

• 4

• 5

Mary decreased her time in the mile walk from 30 minutes to 24 minutes.  What was the percent of decrease?

• 25%

• 20%

• 15%

• 10%