Quiz about Percents and percent problems

Question 1

Thirty percent of 60 students polled said dogs were their favorite pets. How many of the 60 students preferred dogs?

Accepted Answer

18

Answer

60

Answer

30

Answer

50

Answer

90

Question 2

Of the 520 students in Grady Elementary, 65% ride the bus. How mnay students ride the bus?

Accepted Answer

338 students

Answer

65 students

Answer

500 students

Answer

585 students

Answer

455 students

Question 3

Sam had 9 puppies. After giving some away, Sam had 4 puppies left. What is the percent change in the number of puppies? Round to nearest whole percent if necessary.

Accepted Answer

56% decrease

Answer

125% decrease

Answer

56% increase

Answer

125% increase

Question 4

Lisa's little brother weighed 8 pounds when he was born. He now weighs 36 pounds. What is the percent increase in the boy's weight?

Accepted Answer

350%

Answer

4%

Answer

40%

Answer

78%

Question 5

It costs a florist $14.50 to grow a dozen roses. She sells a bouquet of a dozen roses for $24.99. What is the markup (percent increase) to the nearest percent?

Accepted Answer

72%

Answer

42%

Answer

172%

Answer

58%

Question 6

Miss Sylvie miscounted and thought she saw 33 children on the bus. When she counted again, she realizes there are actually only 30 students on the bus. What is her percent error?

Accepted Answer

10%

Answer

9%

Answer

90%

Answer

91%

Question 7

Linda started a savings account for her nephew with $3,000. The account earned 5% simple interest. How much interest did the account accumulate in 4 months?

Accepted Answer

$50.00

Answer

$600.00

Answer

$60,000.00

Answer

$4999.95

Question 8

Mark took out a loan for $2,450.00 at 7% simple interest for 2 years. How much interest did he pay on the loan?

Accepted Answer

$343

Answer

$34,300

Answer

$28.58

Answer

$2,858.33

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