Percentages and Proportion

Sarah solved the problem "What is 30% of 80?" Which way is the correct way to set up her proportion?

• x / 80 = 30/100

• 30/80 = x / 100

• x/30 = 80/100

You can solve a proportion by

• Cross-multiplying

• Using a proportion box

• Simplifying

• All of the above

Jason has 40 pokemon in his pokedex. 22 of those are fairy type. What percentage of the pokemon are fairy type?

• 45%

• 32%

• 55%

• 95%

Mariah took a test. Out of 12 questions she answered 9 correctly. What percent of questions did he score correctly?

• 75%

• 50%

• 80%

• 85%

In a class of 30 kids, 3 students forgot to do their homework. What percent is that?

• 3%

• 30%

• 10%

• 28%

If there are 80 dogs at the animal shelter and 30% of them are puppies, how many of the dogs are puppies?

• 30

• 2.4

• 24

• 56

200 children attended the school play. Of the total attendance, 40% were boys. How many girls attended the school play?

• 800

• 180

• 80

• 120

 Shirley spelled 12 of her 15 spelling words correctly on the test.  What percent grade did Shirley get on the test?

• 40%

• 50%

• 80%

• 60%

Gary read 34 pages of a 340-page book. What percent did he read?

• 34%

• 15%

• 10%

• 25%

In Will’s garden, 71 out of 200 plants have developed seeds. What percent is that?

• 20%

• 25.5%

• 35.5%

• 70%