Proportions

There is a ratio of 5 boys to 11 girls in our class. What is the total number of students if there are 6 boys?

• 26

• 18

• 11

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

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

The ratio 5:15 simplifies to...

• 1:3
• 3:1
• 1:5
• 3:5

There are 13 male teachers and 5 female teachers at Margo's School.  What is the ratio of female teachers to male teachers?

• 5:13
• 13:5
• 18:10
• 26:5

A bag contains marbles: 5 blue and 10 green. How many green marbles are there for every blue marble?

• 1
• 2
• 5
• 10

Solve the proportion.

• 18
• 3
• 2
• 9

Solve the proportion.

• 60
• 15
• 3
• 12

Solve the proportion.

• 84
• 21
• 11
• 5

Which is NOT equivalent to 3:5?

• 15:25
• 9:15
• 21:28
• 30:50