Percent Unit Test

Find the percent error. Round to the nearest tenth of a percent.

Actual speed: 38 mph

Estimated speed: 35 mph

• 8.1%

• 9%

• 7.9%

• 6.8%

Find the percent of change.

From 24 teachers to 30 teachers.

• 15% decrease

• 25% increase

• 20% decrease

• 2% increase

Original: 80

New: 52

• 35% decrease

• 5% increase

• 28% decrease

• 8% increase

The Polar Express movie is $13 and it will be on sale for $9. What is the percent of decrease?

• 15%

• 31%

• 10%

• 22%

• A
• B
• C
• D

One week, 72 people got a speeding ticket. The next week, only 36 people got a speeding ticket. What is the percent of change in the speeding tickets?

• Increase 60%

• Decrease 50%

• Increase 1%

• Decrease 1%

Bob estimates that there will be 230 people who attend the concert.  There was an actual total of 300 people who attended.  Find the approximate percent error.  

• 23%

• 33%

• 27%

• 37%

You take out a car loan. How much interest will you pay in total for the car, if your loan is for $8000, at a rate of 5% interest, over 3 years?

• $1,200

• $120

• $8820

• $9,200

Marie purchased a $49.00 gift for a baby shower. She uses a coupon that offers 20% off. How much will Marie spend on the gift after the coupon?

Romeo paid $380.75 in car repairs. The sales tax rate is 7.5%. Which of the following is a reasonable estimate for the total Romeo paid to repair his car?

• $28.50

• $410.00

• $352.50

• $442.00