ISEE Middle Level Math : Percentage
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Example Questions
Example Question #12 : How To Work With Percentages
At the store where Harry works, a hat he wants to buy sells for $72.00. He gets an employee discount of 20%, and he wants to hold out for two weeks, when the hat is marked down 15%. How much will he be able to buy the hat for then?
A 20% employee discount means that Harry gets to buy merchandise for 80% of the purchase price. A 15% markdown means that the hat will sell for 85% of its normal price. Therefore, Harry will pay 80% of 85% of $72 for the hat, or:
Example Question #13 : How To Work With Percentages
A bicycle Carly wants to buy costs $250 in her hometown in Tennessee, where she would pay no sales tax. Just across the border in Kentucky, she can buy the same bicycle for $225 in a store, but the sales tax is 8%. How much would Carly save by buying the bicycle in Kentucky?
In the Kentucky store, Carly would pay $225, plus 8% of that amount, in tax; this is:
She would save
Example Question #14 : How To Work With Percentages
$12,000 is deposited into a savings account that draws 6% simple interest per year. If no money is withdrawn during the first five years, how much money is in the account at the end of the fifth year?
We can use the simple interest formula 
The savings account will have 
Example Question #201 : Percentage
How much would a 
First, find 
Then, subtract this value from the whole:
Example Question #202 : Percentage
How much would a 
First, find 
Then, subtract this value from the whole:
Example Question #21 : How To Find The Part From The Whole With Percentage
Solve for 
Use a proportion to solve the problem.
Cross multiply
Example Question #203 : Percentage
To get on the ballot for student body president, a student must turn in a petition with the signatures of 4% of the students. If there are 3,268 students, how many signatures must a student get to be on that ballot? (Round to the nearest whole person.)
4% of 3,268 can be calculated by multiplying 3,268 by 0.04, the decimal equivalent of 4%:
Multiply 3,268 by 4, then move the decimal point two places to the right:
so
Rounded to the nearest whole number - 131 signatures.
Example Question #204 : Percentage
Sally painted 11 pictures on Monday, 7 pictures on Wednesday, and 3 pictures on Friday. On average, how many pictures did Sally paint on those 3 days?
To solve, first find the total number of pictures painted:
Then, divide the total number of pictures by the total number of days to find the average.
Sally painted an average of 7 pictures per day.
Example Question #205 : Percentage
200 percent of what number is equal to the difference between 75 and 25?
We must first start by finding the difference between 
Next find the decimal equivalent of 
Now we divide 
Our final answer is 
Example Question #206 : Percentage
Solve:
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