Percent Study Guide

What is 10% of 15?

• 1.5
• 1.56
• 2.5

What is 20% of 65?

• 13
• 15
• 16
• 13.75

Caroline took a math test and got 19 out of 25 questions correct. What percent of the questions did she answer correctly?

• 76%

• 66%

• 24%

• 54%

18 is 30% of what number?

• 25

• 40

• 55

• 60

Find the percent change.
Original amount:  10
New amount: 12

• 20%
• 12%
• 15%
• 50%

Find the percent increase. Round to the nearest percent.
From $5 to $8 

• 40%
• 60%
• 55%
• 65%

Find each percent increase. Round to the nearest percent.
From 13 friends to 14 friends  

• 20%
• 12%
• 15%
• 8%

Find each percent decrease. Round to the nearest percent.
From 90 points to 45 points 

• 55%
• 50%
• 45%
• 35%

Mrs. Ciampa had 27 students in her class last year and this year she had 30 students in her math class. What is the percent of change?

• 24%
• 20%
• 11%
• 50%

Tickets to Disney World are $100.The price is going to increase on January 1. What is the percent of change if the cost increases to a $120?

• 25%
• 18%
• 20%
• 50%