Introduction to Ratios and Proportions Quiz

What is the definition of ratios?

• A way to multiply two or more quantities

• A method of adding two or more quantities together

• A process of subtracting two or more quantities

• A way to compare two or more quantities by dividing them

Which of the following ratios is equivalent to 2:3?

• 1:2

• 4:6

• 5:6

• 3:4

Simplify the ratio 12:18 to its simplest form.

• 4:6

• 6:9

• 8:12

• 2:3

If a:b = 3:4 and b:c = 5:6, what is the ratio a:c?

• 4:6

• 3:5

• 3:5:6

• 3:6

Which of the following ratios is a proportion?

• A

• B

• D

• C

If 4:6 is a proportion, what is the value of x in the ratio x:18?

• 9

• 12

• 15

• 6

If a:b = 2:5 and b:c = 3:8, what is the value of a:c?

• 16:15

• 8:3

• 3:2

• 5:3

Which of the following ratios is not equivalent to 3:4?

• 6:8

• 9:12

• All the given ratios are equivalent to 3:4.

• 1:2

If 5:7 is a proportion, what is the value of x in the ratio 15:x?

• 21

• 35

• 28

• 42

If a:b = 4:7 and b:c = 6:9, what is the value of a:c?

• 2:3

• 3:4

• 5:6

• 8:21