Quiz about Proportional Relationships and Ratios Quiz

Question 1

A recipe calls for 4 cups of flour for every 2 cups of sugar. What is the constant of proportionality between flour and sugar?

Accepted Answer

2

Answer

1

Answer

0.5

Answer

4

Question 2

If 5 notebooks cost $15, what is the unit rate in dollars per notebook?

Accepted Answer

$3

Answer

$2

Answer

$4

Answer

$5

Question 3

Which of the following ratios are equivalent to $$\frac{3}{4}$$ ?

Accepted Answer

$$\frac{15}{20}$$

Answer

$$\frac{8}{12}$$

Answer

$$\frac{5}{6}$$

Answer

$$\frac{14}{16}$$

Question 4

A car travels 180 miles in 3 hours. What is the unit rate in miles per hour?

Accepted Answer

60 mph

Answer

30 mph

Answer

50 mph

Answer

90 mph

Question 5

Which of the following represents a proportional relationship?

Accepted Answer

$$y = 3x$$

Answer

$$y = 2x + 3$$

Answer

$$y = x^2$$

Answer

$$y = x + 5$$

Question 6

If the ratio of boys to girls in a class is 3:5, which of the following is an equivalent ratio?

Accepted Answer

6:10

Answer

9:12

Answer

12:15

Answer

15:20

Question 7

A machine produces 240 widgets in 8 hours. What is the unit rate of production in widgets per hour?

Accepted Answer

30 widgets/hour

Answer

20 widgets/hour

Answer

25 widgets/hour

Answer

35 widgets/hour

Question 8

If $$y$$ is directly proportional to $$x$$ and $$y = 12$$ when $$x = 4$$ , what is the constant of proportionality?

Accepted Answer

3

Answer

2

Answer

4

Answer

5

Question 9

Which of the following ratios is equivalent to $$\frac{7}{9}$$ ?

Accepted Answer

$$\frac{14}{18}$$

Answer

$$\frac{21}{28}$$

Answer

$$\frac{28}{36}$$

Answer

$$\frac{35}{45}$$

Question 10

A cyclist travels 30 kilometers in 3/4 hour. What is the unit rate in kilometers per hour?

Accepted Answer

37.5 km/h

Answer

112 km/h

Answer

35 km/h

Answer

40 km/h

Proportional Relationships and Ratios Quiz

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