Quiz about Proportions

Question 1

Solve the proportion: $$\frac{3}{15} = \frac{9}{45}$$ .

Accepted Answer

The proportion is true.

Answer

The proportion is false because 3/15 simplifies to 1/5 and 9/45 simplifies to 1/6.

Answer

The proportion is false because 3/15 simplifies to 1/4 and 9/45 simplifies to 1/5.

Answer

The proportion is false because 3/15 simplifies to 1/3 and 9/45 simplifies to 1/4.

Question 2

Solve, using a proportion. If 8 cases of merchandise cost $60, what would a dozen cases cost?

Accepted Answer

$90

Answer

$100

Answer

$120

Answer

$150

Question 3

Benito saves 6 out of every 20 he earns. He earned $90 one month. How much did he save?

Accepted Answer

$27

Answer

$18

Answer

$30

Answer

$36

Question 4

Solve, using a proportion. A man who is 6 feet tall casts a shadow that is 11 feet long. At the same time, a tree casts a shadow that is 33 feet long. What is the height of the tree?

Accepted Answer

18 feet

Answer

20 feet

Answer

22 feet

Answer

24 feet

Question 5

Solve, using a proportion. Mr. Savage used 3 gallons of paint to cover 1,350 square feet of wall space. At this rate, how much paint will be needed to cover 1,800 square feet?

Accepted Answer

4 gallons

Answer

3.5 gallons

Answer

4.5 gallons

Answer

5 gallons

Question 6

Serena paid a tax of $288 on a house assessed at $48,000. Using the same tax rate, find the tax on a house assessed at $59,000.

Accepted Answer

$354

Answer

$354.50

Answer

$354.75

Answer

$355

Question 7

At Kolben's Building, 3 out of every 7 employees use public transportation. There are 9,800 employees at the building. How many use public transportation?

Accepted Answer

4,200

Answer

4,800

Answer

5,400

Answer

5,600

Question 8

At the snack bar, 7 hot dogs are sold for every 10 hamburgers sold. At this rate, how many hamburgers will be sold if 63 hot dogs are sold?

Accepted Answer

90

Answer

70

Answer

80

Answer

100

Question 9

Jack delivered 90 circulars in 20 minutes. At this rate, how long will it take him to deliver 135 circulars?

Accepted Answer

30 minutes

Answer

25 minutes

Answer

40 minutes

Answer

35 minutes

Question 10

At the airport, 4 planes land every 8 minutes. At this rate, how many planes will land in one hour?

Accepted Answer

30

Answer

32

Answer

28

Answer

24

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