1. Percent Word Problems

2. A baseball pitcher won 80% of the games he pitched
A baseball pitcher won 80% of the games he pitched. If he pitched 35 ball games, how many games did he win? is % 80 35 = x
100 of
100
80x = 35 x 100
80x = 3500
x = 43.75

3. Jerry, an electrician, worked 7 months out of the year.
What percent of the year did he work? (round answer to the nearest tenth is % x 7 = 12
100 of
100
12x = 7 x 100
12x = 700
x = 58.3%

4. There are 28 students in a class. Sixteen of those students are boys
There are 28 students in a class. Sixteen of those students are boys. What percent of the class are boys? (Round to the nearest tenth) is % x 16 = 28
100 of
100
28x = 16 x 100
28x = 1600
x = 57.1%

5. Donovan took a math test and got 35 correct and 10 incorrect answers
Donovan took a math test and got 35 correct and 10 incorrect answers. What was the percentage of the answers were correct? (Round to the nearest hundredth is % x 35 = 45
100 of
100
45x = 35 x 100
45x = 3500
x = 77.7%

6. In a school, 25 % of the teachers teach basic math
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? is % 25 50 = x
100 of
100
25x = 50 x 100
25x = 5000
x = 200

7. You hired a new employee to work in your bakeshop
You hired a new employee to work in your bakeshop. In one hour the employee burned 625 chocolate chip cookies. If this represented 25% of the day’s production, how many cookies did you plan on producing that day? is %
625 25 = x
100 of
100
25x = 625 x 100
25x = 62500
x = 2500

8. A test has 20 questions. If Paul gets 80% correct, how many questions did he miss?is %
80% is percent correct, we are looking for number missed 80 x = 20
100 of
100
100x = 80 x 20
100x = 1600
16 is the number correct, so he would have missed 4
x = 16

9. 24 students in a class took an algebra test.
If 18 students passed the test, what percent do not pass? is % x
18 students passed, we are looking for the % that did not pass 18 = 24
100 of
100
24x = 18 x 100
24x = 1800
75% passed, so 25% did not pass
x = 75%

10. Jennifer made a fruit juice using red and green grapes
Jennifer made a fruit juice using red and green grapes. Thirty percent of the grapes are green. If she used a
total of 60 grapes, how many red grapes should she use? is % 30
30% are green, we are looking for how many red should be used x = 60
100 of
100
100x = 60 x 30
100x = 1800
18 are green, so 42 are red
x = 18

11. A serving of ice cream contains 1200 calories.
One hundred forty-four calories come from fat.
What percent of the total calories do not come from fat? is %
144 x
144 comes from fat, we are looking for the % that does not come from fat =
1200
100 of
100
1200x = 144 x 100
1200x = 14400
12% come from fat, 88% does not come from fat
x = 12%