Quiz about Proportional Ratios and Rates

Question 1

A class of 32 students has 12 girls. What is the ratio of girls to boys?

Accepted Answer

3:5

Answer

5:8

Answer

5:3

Answer

8:5

Question 2

Jim can run a mile in 5 minutes and 50 seconds.

John can run a mile in 6 minutes and 40 seconds.

What is the ratio of Jim's time to John's time?

Accepted Answer

7:8

Answer

5.5 : 6.4

Answer

55:64

Answer

8:7

Question 3

The distance between two towns on a map is 5 cm. If the real distance between the two towns is 25 km, what is the scale of the map?

Accepted Answer

1:500,000

Answer

1:5,000,000

Answer

1:50,000

Answer

1:5,000

Question 4

A real horse is 1.8 m high. A statue of the horse is 3 m high. What is the ratio of the height of the horse to the height of the statue?

Accepted Answer

3:5

Answer

2:3

Answer

6:1

Answer

5:3

Question 5

The tallest building in the world, the Burj Khalifa in Dubai, is 828 meters tall. A model of the building is made using the ratio 1 : 5,000.

How high is the model in centimeters (cm)?

Accepted Answer

16.56cm

Answer

1,656cm

Answer

165.6cm

Answer

1.656cm

Question 6

A recipe for pastry has flour, butter and water mixed in the ratio 24 : 8 : 3

If Fiona follows the recipe and uses 3 cups of flour, how many cups of butter should she use?

Accepted Answer

1 cup

Answer

$$\frac{1}{3}$$ cup

Answer

$$\frac{3}{8}$$ cup

Answer

$$\frac{3}{4}$$ cup

Question 7

What is the ratio of yellow triangles to all triangles?

Accepted Answer

$$\frac{2}{5}$$

Answer

$$\frac{3}{5}$$

Answer

$$\frac{2}{3}$$

Answer

$$\frac{3}{2}$$

Question 8

What fraction of the apples are orange?

Accepted Answer

$$\frac{1}{10}$$

Answer

$$\frac{1}{2}$$

Answer

$$\frac{1}{3}$$

Answer

$$\frac{1}{15}$$

Question 9

The ratio of black cars to colored cars in the car park is 3 : 7

What fraction of the cars in the car park are black?

Accepted Answer

$$\frac{3}{10}$$

Answer

$$\frac{7}{10}$$

Answer

$$\frac{3}{7}$$

Answer

$$\frac{7}{3}$$

Question 10

The two glasses are in proportion.

What is the width of the larger glass?

Accepted Answer

<html><head></head><body>3 inches</body></html>

Answer

<html><head></head><body>3.3 inches</body></html>

Answer

<html><head></head><body>5 inches</body></html>

Answer

<html><head></head><body>3.5 inches</body></html>

Question 11

Maggie and her little sister Minnie are in proportion.

What is Minnie's height?

Accepted Answer

24 cm

Answer

30 cm

Answer

36 cm

Answer

20 cm

Question 12

The two guitars are in proportion.

What is the length of the fretboard of the larger guitar?

Accepted Answer

40 cm

Answer

35 cm

Answer

38 cm

Answer

58 cm

Question 13

The two triangles are in proportion - they are similar triangles.

What is the value of b?

Accepted Answer

2.25

Answer

1.8

Answer

2.0

Answer

2.4

Question 14

The two trapezoids are in proportion - they are similar.

What is the value of x?

Accepted Answer

3.2

Answer

4.0

Answer

4.4

Answer

3.4

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