PRACTICE PROBLEMS ON PERCENTAGE

Find the percent of each number :

Problem 1 :

68% of 700

Solution

Problem 2 :

85% of 520

Solution

Problem 3 :

40% of 85

Solution

Problem 4 :

32% of 325

Solution

Problem 5 :

2% of 250

Solution

Problem 6 :

50% of 104

Solution

Problem 7 :

75% of 396

Solution

Problem 8 :

90% of 80

Solution

Problem 9 :

25% of 64

Solution

Problem 10 :

63% of 400

Solution

Problem 11 :

Use mental math to find each percent of a number.

a. 20% tip for a $30 meal

b. 18% tip for a $30 meal

Solution

Problem 12 :

Find each percent of a number.

a. 6% sales tax on a $20 shirt

b. 9% sales tax on a $20 shirt

Solution

Problem 13 :

Find each percent of a number.

a.  6% commission on selling a $200,000 house

b.  2% property tax on a $200,000 house

Solution

Problem 14 :

How many students went on vacation?

a) 48      b) 96     c) 100    d)  104

Solution

Problem 15 :

The bar graph shows the strengths of tornadoes that occurred in Alabama in 2011. What percent of the tornadoes were EF1s?

Solution

Problem 16 :

Your friend is bidding online for concert tickets. The current bid is shown. The winning bid is 150% of the current bid. How much is the winning bid?solving-unit-rate-wp-q7.png

Solution

Problem 1 :

What number is 45% of 120?

Solution

Problem 2 :

250% of 65 is what number?

Solution

Problem 3 :

800% of 2,250 is what number?

Solution

Problem 4 :

A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly? (round to the nearest whole number)

Solution

Problem 5 :

There are 36 carpenters in a crew. On a certain day, 29 were present. What percent showed up for work? (round to the nearest tenth)

Solution

Problem 6 :

A metal bar weighs 8.15 ounces. 93% of the bar is silver. How many ounces of silver are in the bar? (round to the nearest thousandth)

Solution

Problem 7 :

A woman put $580 into a savings account for one year. The rate of interest on the account was 6½%. How much was the interest for the year in dollars and cents? (Round to the nearest cent)

Solution

Problem 8 :

If 48% of the students in a certain college are female and there are 2,400 female students, what is the total number of students in the college?

Solution

Problem 9 :

How much HCI (hydrochloric acid) is in a 60-milliliter bottle that is marked 80% HCI? 

Solution

Problem 10 :

On a 120-question test, a student got 96 correct answers. What percent of the problems did the student work correctly?

Solution

Problem 11 :

If 25% of the students in elementary algebra courses receive a grade of A, and there are 300 students enrolled in elementary algebra this year, how many students will receive an A?

Solution

Problem 12 :

On a 120-question test, a student got 84 correct answers. What percent of the problems did the student work correctly?

Solution

Problem 13 :

An engineering student answered 81 questions correctly on a 90-question test. What percent of the questions did she answer correctly? What percent were incorrect?

Solution

Problem 14 :

A basketball player made 63 out of 75 free throws. What percent is this?

Solution

Problem 1 :

36 is 25% of what number?

Solution

Problem 2 :

8.2% of what number is $2.87?

Solution

Problem 3 :

What percent of 1,800 is 846?

Solution

Problem 4 :

What percent of 1,500 is 540?

Solution

Problem 5 :

50 is what percent of 40?

Solution

Problem 6 :

What percent of 260 is 78?

Solution

Problem 7 :

790 is what percent of 395?

Solution

Problem 8 :

a. Find the percent of sales tax on the food total.

b. Find the amount of a 16% tip on the food total.

Solution

Problem 9 :

A pitcher throws 75 pitches. Of these, 72% were strikes. How many strikes did the pitcher throw?

Solution

Problem 10 :

Your school raised 125% of its fundraising goal. The school raised $6750. What was the goal?

Solution

Problem 11 :

The sales tax on a surfboard is $12. What is the percent of sales tax?

Solution

Problem 12 :

The percents of three types of tickets collected at the gate for a high school football game are shown.

a)  Write the percents as decimal and as fractions.

b) There is one type of ticket that is not shown. It is a ticket for a child under 5. What percent of the tickets were of this type ?

Solution

Problem 13 :

There were w signers of the Declaration of Independence. The youngest was Edward Rutledge, who was x years old. The oldest was Benjamin Franklin, who was y years old.

a) x is 25% of 104. What was Rutledge’s age?

b) 7 is 10% of y. What was Franklin’s age?

c) w is 80% of y. How many signers were there?

d) y is what percent of (w + y − x)?

Solution