Ratio and Proportion

Write the missing number.

5 : 7

[] : 14

Jamie mixes 2 parts of red paint with 3 parts of blue paint to make purple paint. He uses 12 cans of blue paint. How many cans of red paint does he use?

• 4 cans

• 6 cans

• 8 cans

• 10 cans

On a school visit, there is 1 teacher for every 8 students. There are 96 students on the visit. How many teachers are there on the visit?

• 12

• 14

• 8

• 10

In a fruit basket, there are 24 apples and 6 oranges. What is the ratio of apples to oranges?

• 2:1

• 3:1

• 4:1

• 5:1

A recipe requires 3 eggs to make 7 cookies. How many eggs will be needed to make 14 cookies?

• 12 eggs

• 4 eggs

• 10 eggs

• 6 eggs

A florist uses a ribbon to trim bunches of flowers. 80 cm of ribbon is needed to make the trimmings on 2 bunches of flowers. The florist has 8 bunches of flowers to trim today. How much ribbon will be needed?

• 320 cm

• 400 cm

• 240 cm

• 160 cm

• 3
• 4
• 5
• 1

10 students want hotdogs for lunch and 26 want hamburgers.  What is the ratio of the number of students who want hot dogs to the number of students who want hamburgers?

• 26:10

• 10:26

• 10:36

• 25:36

What is the ratio of female teachers to male teachers?

• 5:13

• 13:5

• 18:10

• 26:5

• 1
• 3
• 12
• 2