Quiz about PERCENT OF CHANGE

Question 1

Sally went to the clearance rack at a department store and found a shirt she wanted to buy.  The shirt was $36.00 and is on sale for $24.00.  What is the percent of the decrease?

Accepted Answer

33%

Answer

67%

Answer

50%

Answer

34%

Question 2

Ms. Scott receives a basket of apples at her door every Friday morning.  Last Friday, there were 5 apples in the basket.  This Friday, there were 8 apples in the basket.  What is the percent of increase in the number of apples in the basket?

Accepted Answer

60%

Answer

38%

Answer

63%

Answer

167%

Question 3

Tickets to Disney World are $100. The price is going to increase on January 1. What is the percent of change if the cost increases to a $120?

Accepted Answer

20%

Answer

25%

Answer

18%

Answer

50%

Question 4

In 1999, the price of unleaded fuel was $1.09.  In 2015, the price of unleaded fuel is $1.89.  What is the percent change?

Accepted Answer

73% increase

Answer

173% increase

Answer

73% decrease

Answer

27% increase

Question 5

What is the percent of increase,
from 75 pencils to 215 pencils? Round to the nearest whole percent.
Show your proportion on seperate piece of paper.

Accepted Answer

187%

Answer

20

Answer

200

Answer

19%

Question 6

Michelle bought a new tablet for $360 last month. Now, it is priced at $280. What is the percent of change in the price of the tablet?

Accepted Answer

22.2%

Answer

9%

Answer

80%

Answer

800%

Question 7

A $30 pair of jeans is on sale for $15. What is the percent of change for the pair of jeans?

Accepted Answer

50%

Answer

20%

Answer

15%

Answer

4%

Question 8

In the 6th grade, Miguel read 15 books. In 7th grade, he read 21 books. What was the percent change in the number of books Miguel read from 6th to 7th grade?

Accepted Answer

40% increase

Answer

40% decrease

Answer

20% increase

Answer

20% decrease

Question 9

Recent developments in surgical procedures change the average healing time for some operations from 8 weeks to 3 weeks. What is the percent change for the healing time?

Accepted Answer

62.5%

Answer

95%

Answer

5%

Answer

37.5%

Question 10

Erika decreased the amount of salt she consumes every day from 5,000 mg to 2,000 mg. By what percentage did Erika decrease the amount of salt she consumes?

Accepted Answer

60%

Answer

15%

Answer

25%

Answer

40%

Question 11

The Polar Express movie is $13 and it will be on sale for $9.What is the percent of change if the cost decreased $4?

Accepted Answer

31%

Answer

15%

Answer

10%

Answer

32%

Question 12

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 13

Fernando measure the length of a table as 168.0 in. Find the percent of error in the measurement.

Accepted Answer

0.03%

Answer

0.3%

Answer

3%

Answer

0.5%

Question 14

Veronica measured her language arts book and recorded the dimension as 1 in. x 9 in x 10 in. Find the percent of error in calculating its volume.

Accepted Answer

About 66%

Answer

About 56%

Answer

About 46%

Answer

About 76%

Question 15

Valerie's jewelry box measures 7.4 cm x 12.2 cm x 4.2 cm. Find the percent error in calculating its volume.

Accepted Answer

About 2%.

Answer

About 0.2%.

Answer

About 4%.

Answer

About 0.3%.

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