Quiz about Proportions

Question 1

If $$\frac{3}{4} = \frac{x}{8}$$ , what is the value of $$x$$ ?

Accepted Answer

6

Answer

10

Answer

12

Answer

4

Question 2

A recipe that serves 4 people uses 6 cups of flour. How many cups of flour are needed for a recipe that serves 7 people?

Accepted Answer

10.5 cups

Answer

9.5 cups

Answer

8.5 cups

Answer

7.5 cups

Question 3

If $$5$$ books cost $75 how much do 8 books cost?

Accepted Answer

$120

Answer

$$\$$ $100

Answer

$$\$$ $150

Answer

$$\$$ $90

Question 4

The ratio of boys to girls in a class is 3 : 4. If there are 24 girls, how many boys are there?

Accepted Answer

18

Answer

20

Answer

22

Answer

24

Question 5

A map scale shows that $$2$$ inches equals $$5$$ miles. How many miles are represented by $$7$$ inches on the map?

Accepted Answer

17.5 miles

Answer

15 miles

Answer

12.5 miles

Answer

10 miles

Question 6

If a car travels $$300$$ miles on $$10$$ gallons of gas, how many miles can it travel on $$15$$ gallons of gas?

Accepted Answer

450 miles

Answer

500 miles

Answer

550 miles

Answer

600 miles

Question 7

In a certain school, the ratio of teachers to students is $$1:30$$ . If there are $$450$$ students, how many teachers are there?

Accepted Answer

15

Answer

20

Answer

25

Answer

30

Question 8

A photograph is printed at a scale of $$4:3$$ . If the width of the print is $$8$$ inches, what is the height?

Accepted Answer

6 inches

Answer

10 inches

Answer

12 inches

Answer

14 inches

Question 9

If $$\frac{y}{5} = \frac{12}{15}$$ , what is the value of $$y$$ ?

Accepted Answer

4

Answer

3

Answer

5

Answer

6

Question 10

A scale model of a building is made using a scale of $$1:100$$ . If the model's height is $$2$$ feet, what is the actual height of the building?

Accepted Answer

200 feet

Answer

150 feet

Answer

100 feet

Answer

50 feet

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