Puzzling Proportions Test Review

You buy a new car and drive it 200 miles and use 18 gallons of gas. What is the vehicle's approximate miles per gallon (mpg)?

• 8 mpg

• 11 mpg

• 14 mpg

• 18 mpg

Last week you paid $23.00 for 12 gallons of gas at the local gas station. What was the approximate price per gallon or unit rate? (cost to the nearest penny)

• $1.67

• $2.00

• $1.92

• 5 to 1

Which is the better buy?

18 pens for $6.84

30 pens for $8.40

• 18 pens for $6.84

• 30 pens for $8.40

The ratio of Conservatives to Liberals is 5:2. If there is a total of 245 people, how many more Conservatives are there than Liberals?

• 35

• 70

• 175

• 105

A bouquet of flowers has 10 carnations and 2 roses. Write the ratio of carnations to roses in simplest form.

• 5:2

• 5 to 10

• 10 to 2

• 5 to 1

Solve for n.

 $\frac{15}{n}=\frac{2.5}{3}$  

• 18

• 112.5

• 45

• 12.5

Susan ran 13 laps around the track. If 4 laps around the track equal 1 mile, which proportion could be used to determine the number of miles Susan ran?

• $\frac{4}{x}=\frac{13}{1}$

• $\frac{x}{4}=\frac{13}{1}$

• $\frac{4}{1}=\frac{13}{x}$

• $\frac{4}{1}=\frac{x}{13}$

What percent of the model is NOT shaded?

• 60%

• 40%

• 50%

• 20%

Approximately what percent of students said Math was their favorite class?

• 17%

• 81%

• 21%

• 15%

Kelly only finished 14 math problems on her quiz. This was 70% of the total number of problems. How many total problems were on the math quiz?

• 16

• 20

• 18

• 72