Name: ________________________ Class: ___________________ Date: __________ ID: A 


Chapter 7 Review 
Multiple Choice 

Identify the choice that best completes the statement or answers the question. 

Find each number. Round to the nearest tenth if 
necessary. 

1. What number is 240% of 15? 
a. 36 
b. 306.4 
c. 33.8 
d. 84 

2. What percent of 120 is 24? 
a. 24% 
b. 40% 
c. 500% 
d. 20% 
3. 110 is 22% of what number? 
a. 24.2 
b. 500 
c. 430.5 
d. 680 
4. 52.5 is 175% of what number? 
a. 30 
b. 45 
c. 22.8 
d. 91.9 
5. 16.2% of 180 is what number? 
a. 18 
b. 29.2 
c. 38.5 
d. 9 

6. 62% of 146 is what number? 
a. 37.8 
b. 203.4 
c. 94.3 
d. 90.5 
Write an equation for each problem. Then solve. 
Round to the nearest tenth if necessary. 

7. 87 is what percent of 215? 
a. 2.5% 
b. 40.5% 
c. 187.1% 
d. 247.1% 
8. What percent of 20 is 30? 
a. 0.7% 
b. 1.5% 
c. 66.7% 
d. 150% 
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Name: ________________________ 
ID: A 


Determine reasonable answers. 

9. 
Jacob and his family take a taxi to the airport. 
The taxi charges $2.75 for each mile. If the 
distance to the airport is 7 miles, about how much 
will the taxi ride cost? 
a. 
$10 
b. 
$20 
c. 
$25 
d. 
$30 
10. 
Of 721 students, 38.2% do not have computers at 
home. What is a reasonable estimate for the 
number of students that do not have computers at 
home? 
a. 
280 
b. 
325 
c. 
350 
d. 
375 
11. 
A survey shows that 28% of teens regularly 
watch television when they are doing their 
homework. Suppose there are 379 seventh 
graders who complete their homework on a 
particular night. What would be the number of 
teens that will watch television while they do 
their homework? 
a. 
200 
b. 
160 
c. 
120 
d. 
80 
The graph shows the time a puppy spends on 
different activities in a day (24 hours). 


12. What is a reasonable estimate of how much time 
a puppy spends sleeping? 
a. 40% 
b. 50% 
c. 60% 
d. 70% 

13. 
What is a reasonable estimate of how much time 
a puppy spends playing and eating? 
a. 
50% 
b. 
25% 
c. 
20% 
d. 
10% 
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Name: ________________________ 

Find each percent of change. Round to the 
nearest whole percent if necessary. State whether 
the percent of change is an increase or decrease. 

14. 
original: 10 
new: 19 
a. 47% increase 
b. 47% decrease 
c. 90% increase 
d. 90% decrease 

15. 
original: $20.95 
new: $15.10 
a. 28% increase 
b. 28% decrease 
c. 39% increase 
d. 39% decrease 
16. original: 150 
new: 200 
a. 25% increase 
b. 25% decrease 
c. 33% increase 
d. 33% decrease 
ID: A 
17. original: $40.50 
new: $20.25 
a. 50% decrease 
b. 50% increase 
c. 100% decrease 
d. 100% increase 

Short Answer 


Find each number. Round to the nearest tenth if 
necessary. 

18. 
What is 50% of 280? 
19. 
Find 25% of $460. 
20. 
What number is 18.4% of 880? 
21. 
What is 34% of 100? 
22. 
38.5% of 290 is what number? 
23. 
What is 145% of 90? 
24. 
What number is 0.1% of 600? 
25. 
What percent of 16 is 12? 
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ID: A 


Chapter 7 Review 
Answer Section 

MULTIPLE CHOICE 

1. A 
2. D 
3. B 
4. A 
5. B 
6. D 
7. B 
8. D 
9. B 
10. A 
11. C 
12. D 
13. C 
14. C 
15. B 
16. C 
17. A 
SHORT ANSWER 

18. 140 
19. $115 
20. 161.9 
21. 34 
Write 34% as a decimal and multiply by 100. 
0.34(100) = 34 

22. 111.7 
Write 38.5% as a decimal and multiply by 290. 
0.385(290) = 111.65 

Round to the nearest tenth. 

111.7 
23. 130.5 
Write 145% as a decimal and multiply by 90. 
1.45(90) = 130.5 

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ID: A 


24. 0.6 
Write 0.1% as a decimal and multiply by 600. 
0.001(600) = 0.6 

25. 75% 
Set up a proportion to solve for the percent. 

12 x 

= 


16 100 

16x = 
1,200 
x = 
75% 


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