Ratio and Proportion

Solve the proportion:

• 4
• 8
• 14
• 10

Solve for x

• x=6
• x =1/6
• x = 7
• x=9

Patrick has 2 black, 3 red, and 5   white toy cars. What is the ratio of red toy cars to all the toy cars? 

• 3:5
• 1:3
• 3:11
• 3:10

For every 3 cups of rice you need 2 cups of water, if you use 12 cups of rice, how much water will you need.

• 4
• 8
• 24
• 6

Hamburger sells for 3 pounds for $6. If Alicia buys 10 pounds of hamburger, how much will she pay?

• $30
• $20
• $60
• $10

• 1
• 3
• 12
• 2

Jonas has 3 guitars. Geraldine has 4 guitars. If the ratio of guitars is 4:3, who is first in the ratio?

• Jonas
• Geraldine
• Either could be first
• Guitar

If there are 5 Footballs and 7 Netballs, write the ratio of Netballs to Footballs.

• 5 is to 7
• 7 is to 5
• 5 is to 12
• 7 is to 12

 $\Longrightarrow$  Which choice is NOT a proportion (equal ratios)

•  $\frac{2}{4\ }\ =\ \frac{8}{16}$  
  

•  

   $\frac{5}{25}=\ \frac{6}{30}$ 

•  

   $\frac{10}{8\ }\ =\ \frac{5}{4}$ 

•  $\frac{40}{50\ }\ =\ \frac{4}{5}$  

What is the ratio to the picture shown, triangles to squares?

• 2:6
• 5:6
• 3:4
• 4:3