Quiz about Percents Test Review

Question 1

Change this decimal to a percent.
0.528

Accepted Answer

52.8%

Answer

528%

Answer

5.28%

Answer

52%

Question 2

What is 0.2 as a percentage?

Accepted Answer

20%

Answer

0.2%

Answer

2%

Answer

200%

Question 3

Change 2.478 to a percent

Accepted Answer

247.8%

Answer

2478%

Answer

24.78%

Answer

0.02478%

Question 4

Change this decimal to a percent.
0.528

Accepted Answer

52.8%

Answer

528%

Answer

5.28%

Answer

52%

Question 5

Change 56% to a decimal

Accepted Answer

.56

Answer

56

Answer

5.6

Answer

.056

Question 6

Change 4% to a decimal

Accepted Answer

.04

Answer

.4

Answer

.40

Answer

400

Question 7

What is 70% turned into a decimal?

Accepted Answer

0.7

Answer

0.10

Answer

0.75

Answer

0.86

Question 8

A TV that normally cost $800 is on sale for 33% off.  There is a 6% sales tax on the purchase.  What is the final cost of the TV?

Accepted Answer

$568.16

Answer

$536.00

Answer

$279.84

Answer

$321.60

Question 9

You plan to purchase a plane ticket for $299.00 and you are going to use a discount code to receive 15% off.  How much will the ticket cost?

Accepted Answer

$254.15

Answer

$149.50

Answer

$343.85

Answer

$44.85

Question 10

The number of students in the school went from 1028 down to 755.  What is the percent decrease?

Accepted Answer

27%

Answer

26%

Answer

36%

Answer

136%

Question 11

The Green family went to dinner and the bill was $67.45.  Mr. Green wanted to leave an 18% tip for the waiter.  How much will the waiter receive?

Accepted Answer

$12.14

Answer

$121.41

Answer

$55.31

Answer

$79.59

Question 12

Meghan paid $7 for a book.  This price included a 20% discount.  What was the original price of the book?

Accepted Answer

$8.75

Answer

$8.40

Answer

$5.60

Answer

$12.60

Question 13

A store pays $1.50 for a bag of candy. If the store wants to mark-up the price 60%, for how much will the store sell the bag of candy?

Accepted Answer

$2.40

Answer

$0.60

Answer

$0.90

Answer

$6.00

Question 14

What is the formula for simple interest?

Accepted Answer

I=Prt

Answer

A=P(1+r)t

Answer

I=P(1+r)t

Answer

A=Prt

Question 15

What does the P in I =PRT mean?

Accepted Answer

Principal

Answer

Power

Answer

Product

Answer

Percent

Question 16

The simple interest formula is I=Prt. What does the t represent?

Accepted Answer

Time, in years

Answer

Principle

Answer

Interest

Answer

Time, in hours

Question 17

Dan borrowed $2,000 for 6 months at 12% annual simple interest rate. How much interest is that?

Accepted Answer

$120

Answer

$144

Answer

$1,200

Answer

$1,440

Question 18

Find the simple interest earned for principal of $2,000 at and 8% rate for 5 years.

Accepted Answer

$800

Answer

$160

Answer

$80,000

Answer

$16

Question 19

Timmi puts $300 in a bank account earning 4% interest. How much will she earn in interest in 1 year?

Accepted Answer

12

Answer

4

Answer

8

Answer

16

Question 20

What does the "I" in the interest formula stand for?

Accepted Answer

Interest

Answer

Principal

Answer

Rate

Answer

Time

Question 21

When Lisa was born, her parents put $8,000 into a college fund account that earned 9% simple interest. Find the amount of interest earned after 18 years.

Accepted Answer

$12,960

Answer

$720

Answer

$1,080

Answer

$20,960

Question 22

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?

Accepted Answer

11%

Answer

24%

Answer

20%

Answer

50%

Question 23

Find the PERCENT of change.
20 dogs to 5 dogs

Accepted Answer

Decrease 75%

Answer

Decrease 15%

Answer

Increase 15%

Answer

Increase 75%

Question 24

A group of wildlife conservationists are trying to determine what is causing a recent decrease in the number of white-tail deer in a particular area. Two years ago, they estimated the population to be 680. Recently, the population was estimated to be 410. Which is closest to the percent of change in the white-tail deer population?

Accepted Answer

40%

Answer

66%

Answer

270%

Answer

54%

Question 25

The attendance for the basketball game was estimated to be 15,000 people but 12,500 people attended. What was the percent error?

Accepted Answer

20%

Answer

16.67%

Answer

2500%

Answer

80%

Question 26

Jessie estimates the weight of her cat to be 8 pounds.  The actual weight of the cat was 10 pounds.  Find the percent error.

Accepted Answer

20%

Answer

15%

Answer

25%

Answer

30%

Question 27

Griffin was buying a birthday card, he thinks the price is $4.50, but the actual price is $4. What is his percent of error?

Accepted Answer

12.5%

Answer

50%

Answer

0.5%

Answer

0.125%

Question 28

Andrew expected $60 for his birthday, but only got $40. What is the percent of error?

Accepted Answer

50%

Answer

20%

Answer

67%

Answer

150%

Question 29

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

Accepted Answer

33%

Answer

15%

Answer

25%

Answer

75%

Question 30

You guess that Lebron James would score 35 points during the game. He actually scored 28. Find your percent error.

Accepted Answer

25%

Answer

30%

Answer

33%

Answer

75%

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