Ratios

There are 20 people and 18 seats. What is the ratio of people to seats?

• 20:18

• 18:20

• 2:18

• 18:2

Write any equivalent ratio for 1 : 2

In a bunch of 18 flowers, 6 of the flowers are tulips. The rest are roses.

What is the ratio of roses to tulips?

• 6 : 18

• 12 : 6

• 6 : 12

• 18 : 6

What is the simplified ratio of 5:20?

• 1:5

• 1:4

• 1:10

• 2:10

On a spinner, 6 spaces are blue and 4 are green. What is the ratio of green to blue spaces?

• 4:10

• 6:4

• 4:6

• 10:4

On a spinner, 6 spaces are blue and 4 are green. What is the ratio of green to total spaces?

• 4:10

• 6:4

• 4:6

• 10:4

Which of these are equivalent ratios for 30:10?

(There are two correct answers)

• 3 : 1

• 14 : 2

• 15 : 5

• 60:30

Simplify this ratio.

6 : 2

(a)  

Simplify this ratio.

4:10

(a)  

What is the highest common factor between 6 and 21?

• 6

• 1

• 3

• 2