Proportions
Percent Proportions
Tax, Tip, Discount
Percent Increase and Decrease
Simple Interest
100
Mary reduced the width of a painting to 3.3 in. What is the new height if it was originally 32.5 in tall and 42.9 in wide?
What is 2.5
100
There are 24 students in Mr. Sturgill's class. 21 of those students passed the SOL. What percentage failed the SOL?
What is 12.5%
100
James buys a new laptop for school that costs $499. He has a coupon for 20% off. How much money will he save?
What is $99.80
100
A popular brand of running shoes costs a local store $68 for each pair. If the store sells the shoes for $119, what is the percent of increase in the price?
What is 75
100
Kelly plans to put her graduation money into an account and leaves it there for 4 years. She receives $750 in graduation money that she puts in the account that earns 4.25% interest. How much will be in Kelly's account at the end of four years?
What is 877.50
200
A company can make 125 computers in 45 minutes. How many computers can they make in 3 hours?
What is 500
200
The movie theater has 275 seats. 230 seats were sold for the current showing. What percent of seats are empty?
What is 16.4
200
Your family goes out to eat for your dad's birthday. He orders an entree for $11.50. Your mom orders something for $9.75. You order something for $8.25. If your dad tips the waiter 20%, how much will he need to leave all together?
What is $35.40
200
The price of a video gaming system was $259. The price decreased to $199. What is the percent decrease in the price of this system? Round your answer to the nearest whole percentage.
What is 23%
200
Jamie wants to earn $500 in interest so she'll have enough to buy a used car. She puts $2000 into an account that earns 2 1/2% interest. How long will she need to leave her money in the account to earn $500 in interest?
What is 10 years
300
In the United Kingdom the risk of a child developing mathitis is approximately 3 in 1,500. If there are approximately 11,721,722 children in Great Britain, how many have cancer?
What is 23443
300
A school of 450 voted for school president. 40% voted for John and 60% voted for Tina. How many votes did the winner get?
What is 270
300
A small company buys $225,000 worth of taxable items during the 2013 fiscal year. If they paid a 5.75% sales tax on these items, how much tax did they pay for the year?
What is $12937.50
300
A basketball that originally costs $17.50 is on sale for $12.00. What was the discount rate?
What is 31.4%
300
James invests $1200 in an account that pays 7.5% interest for 9 months. How much interest will he earn?
What is $67.50
400
Oscar loves cheeseburgers. He enters a 24 hour cheese burger eating contest. During the contest Oscar eats a cheese burger every 15 minutes. How many cheese burgers will he eat during the entire contest?
What is 96
400
A survey of 2,500 people was done by the Bristol Herald Courier. 92% of the people in Bristol did not know who the first president of the United States was. How many knew that George Washington was the first president?
What is 200
400
You are shopping for a new car and see the one that you want. The sticker on the car says $8750. The car lot is a having a sale and every car is 5% off. You will be required to pay 7.25% sales tax on the car. You can afford a loan for $9250. How much will you have to pay total for this car and can you afford it?
What is $8915.16 and yes
400
A house costs $100,000 in 1998. The value increased by 33% between then and now. How much is the house worth?
What is 133,000
400
Mary got a loan for a new car. The loan was for $20,000. She will be required to pay 9% interest on the loan. If she pays $30,800 total, how long was her loan for?
What is 6 years
500
A dentist sees a patient every 20 minutes. He works an average of 60 hours per week, but spends 5 of those on lunch. How many patients does he see in two weeks?
What is 330
500
Bill is in a class of 15 boys and 35 girls. 18 of them take the bus to school. What percentage don't take the bus to school?
What is 64
500

You are buying a new book for math class. The book costs $23.50 but is currently 10% off. You must also pay a 6% sales tax. If you pay with a $50 bill, how much change will you get back?

What is $27.58

500
A local bank is advertising that you can double your money in eight years if you invest with them. Suppose you have $1000 to invest. What interest rate is the bank offering?
What is 12.5%
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