Simple Proportion

A test has 20 questions. If Peter gets 80% correct, how many questions did Peter get correct?

• 4 correct

• 16 correct

• 4%

• 25 correct

In a school, 25 % of the teachers teach basic math. If there are 50 basic math teachers, how many teachers are there in the school?

• 150 teachers 

• 5 teachers 

• 50 teachers 

• 200 teachers 

24 students in a class took an algebra test. If 18 students passed the test, what percent do not pass?
*HINT* Find out how many did not pass the class before you start! 

• 25%

• 75%

• 75 students

• 24 students

Jennifer made a fruit juice using red and green grapes. Thirty percent of the grapes are red. If she used a total of 60 grapes, how many red grapes should she use?

• 18 green grapes 

• 50% of the grapes 

• 18 red grapes

• 50 red grapes

Adrien and his family are enjoying a vacation in the wild west. One place they really want to visit is the Grand Canyon. The total distance they will drive is 400 miles. If they have already driven 280 miles, what percent have they driven?

• 68%

• 30%

• 70%

• 43%

• 2.3%

• 66.6%

• 6%

• 23%

Write 75% as a decimal.

• 0.75

• 0.00075

• 7.5

What percent of 50 is 20?

• 40%

• 25%

• 2.5%

• 4%

What is 40% of 230?

• 92

• 9200

• 9.20

• 575

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%