Percents Error

24 is what percent of 30?

• 80%

• 125%

• 1.25%

• 0.8%

Buying a birthday card, you think price is $4.50, but actual price is $4. What is the percent error?

• 50%

• 0.5%

• 12.5%

• 0.125%

Renee thinks it will take 95 minutes to run 7 miles. She runs it in 80. What is her % of error?

• 15%

• 15.79%

• 18.75%

• 8.42%

They estimated that 60 people would come to eat, but only 45 attended. Whats the % of error?

• 15%

• 25%

• 33 1/3%

• 75%

Jo figures she'll get a 90% on her test, but she got a 95%. What is her percent of error? Round to the nearest whole percent.

• 5%

• 6%

• 4%

• -5%

The sneakers were $200, but are now on sale for $75. What is the percent of change?

• 75%

• 125%

• 37.5%

• 62.5%

MaryJo thinks there are 430 passengers, but there are 380. What is her percent of error?

• 13.16%

• 12.5%

• 11.63%

• 50%

Susan baked 24 cupcakes, but actually needed 37. What was her % error?

• 154%

• 65%

• 54%

• 35%

36 carpenters are in a crew. Today, 29 were present. What percent of the crew worked today?

• 80%

• 82%

• 65%

• 81%

Josh always leaves a 20% tip. Yesterday his server received $4.50 from him as a tip. What was the amount of his bill?

• $22.50

• $20.00

• $0.90

• $25.50