Percent of a Number
A bag holds 350 marbles. 60% of them are red. How many marbles are NOT red?
140 marbles are not red
A store sold 240 items in January and 180 items in February. What is the percent decrease?
The percent decrease is 25%.
A store marks up a shirt 80% from its wholesale cost of $15. What is the selling price?
The selling price is $27.
Sam invested $2,000 at 4% simple interest for 3 years. How much interest did he earn?
Sam earned $240 in interest.
A company manufactures water bottles. The list below describes the number of water bottles manufactured in three months.
February: 4,100 water bottles
March: 7% more water bottles than in February
April: 500 more water bottles than in March
What is the percent increase, to the nearest percent, in the number of water bottles the company manufactured from February to April?
The percent increase in the number of water bottles manufactured from February to April is approximately 19%.
A class has 40 students. 35% of them are in the school play. How many students are in the school play?
14 students are in the school play.
A school library had 900 books. After donations, it now has 1,170 books. What is the percent increase?
The percent increase is 30%.
A pair of shoes costs $85. There is a 20% off sale and 7% tax. Write an expression to find the final price.
x=0.8(1.07)(85)
Priya borrowed $5,000 at 6% simple interest. She paid back $6,500 total. How many years was the loan?
The loan was for 5 years.
Mia has 150% more stickers than Joss. After Mia gives Joss 20 stickers, Mia has 80% more than Joss. How many stickers did Mia start with?
Mia started with 200 stickers.
A tank is 30% full and contains 510 gallons. What is the maximum capacity of the tank?
The maximum capacity is 1,700 gallons.
The accepted volume of a container is 50 mL. A student measured 53.5 mL. What is the percent error?
The percent error is 7%.
A coat was discounted 35% from $160. After the sale, the store raised the price 35%. What is the final price?
The final price is $140.40.
An investor earned $135 in simple interest over 5 years at 3% annual interest. What was the original principal?
The original principal was $900.
Mr. Carter and four of his friends went out to dinner and split the bill evenly. Each person paid $24.57, which included a 20% tip and an 8% sales tax. What was the total bill for the table before tax and tip were added?
The total bill is about $95.98.
In a jar of 120 candies, 45 are sour. What percent of the candies are NOT sour?
62.5% of the candies are not sour.
A town's population went from 12,500 to 9,750. What is the percent decrease?
The percent decrease is 22%.
A video game originally costs $60 and is 25% off. The tax rate is 8.5%. What is the final price?
The final price is $48.83.
Jordan put $1,200 in a savings account. After 4 years at simple interest, the account has $1,488. What is the interest rate?
The interest rate is 6%.
Kevin spent 25% of his money on lunch and 50% of the remaining money on a book. He has $33.75 left. How much money did Kevin start with?
Kevin started with $90.
A recipe uses 65% wheat flour and the rest is almond flour. If there are 4.5 cups of almond flour, how many total cups of flour are there? Round to the nearest whole number.
There are about 13 total cups of flour.
A runner's best time was 48 seconds. After training, their time dropped to 42 seconds. What is the percent change?
The percent change is 12.5%.
A furniture store marks up a chair 150% from its cost. On sale, it is 20% off. After 7% tax, the chair is purchased for $257.04. What was the original cost?
The original cost was $120.11.
A loan of $8,000 at 2.5% simple interest for 6 years. What is the total amount paid back?
The total amount paid back is $9,200.
Mrs. Glaser has a large bag of 150 pizza rolls. She and her friends eat 40% of the rolls in the first week. In the second week, she and her friends eat the 20% of the remaining rolls. How many rolls are remaining in the bag?
There are 72 pizza rolls remaining in the bag.