NAME _____________________________________________ DATE ____________________________ PERIOD _____________
Pre-Test Ch 5- Ratios, Proportions, and Similar Figures (2B)
Write the letter for the correct answer in the blank at the right of each question.
Write the answer on the blank if it is not multiple choice.
1. Which fraction represents the ratio 6 cups to 4 quarts in simplest form?
1.___________________
2. Which fraction represents the ratio 6 ounces to 3 cups in simplest form?
F. 2
G.
H.
J.
2. __________________
3. A train travels 423 miles every 9 hours. What is the unit rate of the train?
3. __________________
4. Which price has the same unit rate as 3 cans for $1.98?
F. 2 cans for $1.32
H. 6 cans for $4.00
G. 5 cans for $5.90
J. 4 cans for $3.60
4. __________________
5. It costs $50 to rent a kayak for 4 hours. If the cost is proportional to the number of
hours rented, which of the following is not an equivalent rate?
A. $25 for 2 hours
C. $60 for 5 hours
B. $37.50 for 3 hours
D. $75 for 6 hours
5. __________________
6. Which set of numbers is proportional?
2
3
4
F. Classrooms 1
Students
G.
Teams
Students
23
46
69
92
1
11
2
23
3
33
4
44
7. What value of y makes =
H.
J.
Dogs
Collars
2
2
Bands
Flute Players
4
4
6
5
1
4
8
7
3
12
6. __________________
5
18
7
20
a proportion?
7. __________________
8. A soup recipe calls for 2 pounds of rice for 25 servings. How many pounds of rice are
needed for 30 servings? Use a proportion. Show your work.
Work:
8. __________________
9. A store sells 5 bundles of firewood for $40. Which equation could be used
to find the total cost c if a customer wants to buy 3 bundles of firewood?
(Hint: use the unit rate.)
A. c = 5 · 8
B. c = 3 · 8
C. c = 3 · 40
D. c = 5 · 1.4
9. __________________
10. Felino used a scale of 1 inch = 2 feet to construct a scale model of his
kitchen. The refrigerator in the model has a height of 3 inches. What is
the actual height of the refrigerator?
10. _________________
NAME _____________________________________________ DATE ____________________________ PERIOD _____________
Pre-Test Ch 5- Ratios, Proportions, and Similar Figures (2B) (continued)
11. Suppose a model of the Queen Mary is 17 inches in length. The actual
length of the Queen Mary is 1020 feet. What is the scale of the model?
A. 1 ft = 60 inches
B. 1 in. = 60 feet
11. _________________
C. 60 in. = 60 feet
D. 60 in. = 1020 feet
For Exercises 12 and 13, use similar triangles KLJ and NPM.
12.___________________
12. What segment corresponds to ̅̅̅̅̅?
13. What angle is congruent to ∠M?
13. __________________
14. The number of miles Miguel biked is
proportional to the number of minutes he
cycled. The graph shows the relationship
(time, distance). Which of the following
represents the constant of proportionality?
F.
H. 3
G.
J. 15
14. __________________
15. At the same time a 15-foot pole casts a 7.5-foot shadow, a nearby tree
casts a 24-foot shadow. How tall is the tree? Use a proportion. Show your work!
Work:
16. The cost of toilet tissue is $6 for 5 rolls, $12.00 for 10 rolls, and $21.60 for 18 rolls. Is
this a proportional relationship? If the relationship is proportional, find the constant
of proportionality. Show your work.
Work:
15. __________________
16. Proportional?______
If yes, the constant of
proportionality:
16. __________________
17. John painted 4 walls in 3 hours. At this rate, how long would it take John to paint 14
walls. Use a proportion. Show your work!
Work:
17. __________________