Proportion, Percent, Equations

Which proportion matches the following:

What is 90% of 250?

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

• 20%
• 40%
• 60%
• 80%

Amanda has finished 9 problems on her math study guide. If this is 75% of the problems on her study guide, how many problems are on the entire study guide? Use a proportion to solve.

• 15 problems

• 12 problems

• 3 problems

• 69 problems

90 is 120% of what number?

• 108

• 75

• 118

• 55

What percent of 500 is 25?

• 50%

• 125%

• 5%

• 0.05%

What number is 20% of 45?

• 9

• 90

• 4.4

• 7

A music collector has 1200 CDs, and 65% of them were produced after 1990. How many of the CDS were produced after 1990?

• 780 CDs

• 1,293 CDs

• 420 CDs

• 840 CDs

In the United States, 13 out of every 20 cans are recycled. What percent of cans are recycled?

• 55%

• 63%

• 65%

• 85%

King Hangry is eating a 50 gram chocolate bar which contains 30% cocoa. How many grams of cocoa are in the chocolate bar?

• 150 grams

• 15 grams

• 166 grams

• 18 grams

5 student in class want to have extra homework. If 20% of the student want extra homework, how many total students are in the class?

• 25 students

• 30 students

• 20 students

• 15 students