Quiz about Percents Unit Review

Question 1

Eli's Electronics has a 60-inch television on sale this week for $798.  The television is regularly priced for $1,050.  By what percent did the price of the television decrease?

Accepted Answer

24%

Answer

$252

Answer

76%

Answer

$2,520

Question 2

Seventy-five percent of the girls in Ms. Thompson's class own a smart phone compared to 62.5% of the boys.  If there are 20 girls and 8 boys in Ms. Thompson's class, how many students own a smart phone?

Accepted Answer

20 students

Answer

15 students

Answer

5 students

Answer

21 students

Question 3

Seventy-five percent of the girls in Ms. Thompson's class own a smart phone compared to 62.5% of the boys.  If there are 20 girls and 8 boys in Ms. Thompson's class, what percent of the students in Ms. Thompson's class own a smart phone?

Accepted Answer

71%

Answer

75%

Answer

62.5%

Answer

48%

Question 4

Marina's bill for dinner totals $38.65, including tax.  She leaves 20% tip.  If she pays with a $100 bill, how much change will Marina receive?

Accepted Answer

$53.62

Answer

$46.38

Answer

$7.73

Answer

$41.35

Question 5

Vicky made some purchases at the Sunflower Market.  She bought strawberries for $3.50, carrots for $2.25 and a bouquet of flowers for $9.95.  If sales tax is 5%, what will Vicky pay altogether?

Accepted Answer

$16.49

Answer

$20.70

Answer

$7.85

Answer

$15.70

Question 6

Sugar-free gum contains 40% less calories than regular gum.  If a piece of regular gum contains 40 calories, how many calories does a piece of sugar-free gum contain? (use proportions)

Accepted Answer

24 calories

Answer

16 calories

Answer

56 calories

Answer

64 calories

Question 7

Question 7.

Accepted Answer

$22.50

Answer

$15.00

Answer

$127.50

Answer

$135.00

Question 8

Which is the best incentive for buying the cell phone, and how much will Rafael save?
Cheap cell is $150 plus a 15% instant rebate.
Cells for Less, Regular Price: $150; Sale Price: $125.

Accepted Answer

Cells for Less has the better incentive; a saving of $25.00

Answer

Cheap Cell has the better incentive; a savings of $25.00

Answer

Cells for Less has the better incentive; a saving of $22.50

Answer

Cheap Cell has the better incentive; a saving of $22.50

Question 9

Neal purchases a digital camera for his family to use on their vacation. The model he purchases is on sale for $129. The sales tax rate for his city is 7.5%.
How much sales tax does Neal pay on the digital camera?

Accepted Answer

$9.68

Answer

$0.97

Answer

$7.50

Answer

$17.20

Question 10

Neal purchases a digital camera for his family to use on their vacation. The model he purchases is on sale for $129. The sales tax for his city is 7.5%.
What is the total cost, including tax, for the digital camera Neal purchases?

Accepted Answer

$138.68

Answer

$146.20

Answer

$129.97

Answer

$136.50

Question 11

In a class of 30 students, 20% of them get A's.  How many students get an A in the class?

Accepted Answer

6 students

Answer

24 students

Answer

60 students

Answer

20 students

Question 12

The tax rate in Oklahoma is 7%.  If Lucy went shopping over the weekend in Oklahoma City and bought $135 worth of clothes, how much would she have paid in taxes?

Accepted Answer

$9.45

Answer

$144.45

Answer

$125.55

Answer

$7.00

Question 13

Franco got 18 out of 20 questions correct on his science test.  What percent of the questions did he get correct?

Accepted Answer

90%

Answer

20%

Answer

18%

Answer

80%

Question 14

75% of the milk sold at lunch in the cafeteria is chocolate milk.  If the cafeteria sold 120 chocolate milks during lunch, how many total cartons of milk did they sell during lunch?

Accepted Answer

160 cartons

Answer

75 cartons

Answer

45 cartons

Answer

90 cartons

Question 15

Mrs. Jobb went to Bed, Bath, and Beyond.  She bought her sister a new blender for her birthday that costs $49 and she bought a new hand vacuum for her house that cost $29.  She had a 20% off coupon for her most expensive item and a 10% off coupon for the cheaper item.  How much did Mrs. Jobb pay for both items?

Accepted Answer

$65.30

Answer

$29.00

Answer

$26.10

Answer

$78.00

Question 16

A DVD at Best Buys sells for $14.00.  This week Best Buy has DVD's of sale for 10% off.  At Wal-Mart, the same DVD for $16, but it is on sale for 25% off.  Which store has the better buy for the DVD?

Accepted Answer

Wal-Mart has the better deal; $12.00

Answer

Best Buy has the better deal; $12.60

Answer

Wal-Mart has the better deal; $12.60

Answer

Best Buy has the better deal; $12.00

Question 17

Shelby purchases her college books for the upcoming semester.  She has to pay $98 for a biology book, $38 for a used poetry book, and $74 for trigonometry textbook.  If the sales tax rate is 7.5%, how much tax will Shelby pay?

Accepted Answer

$15.75

Answer

$7.50

Answer

$14.25

Answer

$157.50

Question 18

Laci is on a school field trip and wants to purchase a souvenir for her parents.  The item she wants is priced at $20.   The total cost of the souvenir with tax is $21.45.  What tax rate does Laci pay for the souvenir?

Accepted Answer

7.25%

Answer

7%

Answer

8.25%

Answer

8%

Question 19

Shelby purchased a coat for $101.50 that was regularly priced at $145, not including tax.  What percent did Shelby save by purchasing the coat on sale?

Accepted Answer

30%

Answer

70%

Answer

25%

Answer

43%

Question 20

Tan's electricity bill for the month of August was $267.00.  His September bill showed a 2% increase from his August bill.  In October, his bill decreased 8% from the amount he was bill in August.  How much did Tan spend on electricity over the three-month period?

Accepted Answer

$784.98

Answer

$800.94

Answer

$774.30

Answer

$827.70

Question 21

Holly and her 2 best friends go to dinner.  Their bill is $31.84.  They use a coupon for 15% off the total.  If they split the bill evenly, how much money will each person owe, to the nearest cent?

Accepted Answer

$9.02

Answer

$8.84

Answer

$10.61

Answer

$12.21

Question 22

Rami bought 4 pairs of jeans.  His total bill, including tax, was $80.29.  If each pair of jeans cost $18.50 before tax was added, what tax rate did Rami pay on the jeans?

Accepted Answer

8.5%

Answer

9.2%

Answer

7.25%

Answer

2.3%

Question 23

Hector buys a used car with an odometer reading 42,450 miles.  After the first month, the mileage shows an increase of 5%.  After the second month, the mileage increases 4% from the first month.  What is the odometer reading on Hector's car after the first 2 months?

Accepted Answer

46,270.5 miles

Answer

46,355.4 miles

Answer

80,655.0 miles

Answer

89,145.0 miles

Question 24

Orlando buys a shirt for $15 and a pair of jeans for $32.50.  If the sales tax is 8%, what is the total price Orlando pays for the items?

Accepted Answer

$51.30

Answer

$47.88

Answer

$43.70

Answer

$85.50

Question 25

Last year, the seventh-grade enrollment at Main Middle School was 612 students.  This year, the enrollment dropped to 489 students due to the opening of a new middle school.  Which best reflects the percent of change in enrollment at Main Middle School from last year to this year?

Accepted Answer

20.1% decrease

Answer

25.2% increase

Answer

45.3% increase

Answer

21.7% decrease

Question 26

A soccer team played 32 games.  If they won 25% of them, how many games did the team win?

Accepted Answer

8 games

Answer

16 games

Answer

24 games

Answer

32 games

Question 27

Mrs. Margul paid $125 to have her hair colored and cut.  If she tips her hairdresser 15%, what is her total bill?

Accepted Answer

$143.75

Answer

$140.00

Answer

$125.00

Answer

$118.75

Question 28

What number is 25% of 160?

Accepted Answer

40

Answer

120

Answer

75

Answer

200

Question 29

21 is what percent of 300?

Accepted Answer

7%

Answer

3%

Answer

70%

Answer

30%

Question 30

17 is 25 % of what number?

Accepted Answer

68

Answer

34

Answer

51

Answer

25

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