Percent Proportion Review

What percent of 50 is 20?

• 40%
• 25%
• 2.5%
• 4%

78 is what percent of 450?

• 5%
• .17
• 17%
• 18%

Bill is in a class of 15 boys and 35 girls. 40% of the students in the class take the bus to school. How many students do not take the bus to school?

• 15
• 20
• 30
• 35

In the Central City Grand Prix, out of 30 cars that started the race, 12 of them finished. What percent of the cars finished the race?

• 20%
• 40%
• 60%
• 80%

No-Freeze antifreeze mixture contains 30% alcohol. How much alcohol is there in 15 quarts of No-Freeze?

• 4.5
• 6.5
• 8.5
• 10.5

Eric earned 60 points on his last test. If there were 75 possible points, what was his percent grade?

• 20%
• 40%
• 60%
• 80%

You are assigned 32 math questions for homework. You complete 87.5% of these before dinner. How many questions do you have left to to do after dinner?

• 7
• 4
• 28
• 20

Sam bought an $85.00 jacket for 40% off of the regular price.  How much did he pay for the jacket? 

• 75
• 51
• 36
• isaiah

How do you set up percent proportions?

• (part/whole) = (%/100)
• (%/part) = (100/whole)
• (part/part) = (whole/whole)
• (whole/part) = (%/100)

The movie theater has 250 seats. 225 seats were sold for the current showing. What percent of seats are empty?

• 10%
• 20%
• 80%
• 90%