5_Percents_WS

Name:
Percents
Date:
Math 7 – HW
Formula:
%( as decimal ) Whole
Part
Proportion:
part %
whole 100%
change
original
%
100%
When working with real world money problems:
The following are all types of “parts”; tax, tip, discount, commission, interest.
To find the total cost, sale price or retail price; you must add or subtract original price with the part.
Multiple Choice: *No Calculator*
1) A store spends $10 for each pair of Brand X
jeans and adds a 120% markup to the cost.
What is the selling price of the jeans?
A. $11.20
B. $12.00
C. $22.00
D. $130.00
2) The price of a book is $6.00 and the sales tax is
5%. What is the total cost of the book?
A. $0.30
B. $5.70
C. $6.05
D. $6.30
3) Tyler bought three shirts for $10.00 each. A
5% shipping and handling fee was added to the
cost of the shirts. How much did he pay?
A. $10.00
B. $10.50
C. $30.00
D. $31.50
5) Which expression cannot be used to calculate
the total amount paid for a meal (m) including
a 15% tip?
A.
B.
C.
D.
4) Kaitlin bought 4 pairs of shoes that cost $24
each. If the tax rate was 8%, how much did
she pay?
A. $103.68
B. $96.00
C. $25.92
D. $7.68
6) Elena gets a base pay of $1,500 per month.
She also earns a commission of 8% of the total
sales she makes. What are Elena’s earnings for
a month in which she has a sales of $32,000?
A. $1,620
B. $2,560
C. $4,060
D. $27,100
7) On Thursday, 30 students went to after-school
tutoring. On Friday, 6 students went. What is
the percent decrease in the number of students?
A. 20%
B. 80%
C. 400%
D. 500%
8) Mr. Kross usually prices the umbrellas in his
store at $8 each. However, on rainy days he
increases the price by 75%. How much does
he charge for an umbrella on a rainy day?
A. $2
B. $6
C. $9.38
D. $14

9) Joshua borrows $300 from his older sister to buy a bike. He promises to pay the total amount back
plus 5% simple interest in 2 years. How much will Joshua pay back in all?
10) The Outdoor Furniture Center buys wooden benches for $50 each. The furniture store owner adds a
200% markup to the cost of the bench. After hearing from customers that the selling cost of the
bench is too high, the owner changes the markup to 120%. How much less per bench does the store
owner make with the lower markup?
11) The owner of the Outdoor Furniture Center decides to use the 120% markup. At the end of the
season, he wants to sell al the benches that are in stock. He sells the benches for 20% off. What is
the total price of a bench with this discount plus a 5% sales tax?
12) A manufacturer predicted customers would return fewer than 2% of the computers purchased each
month. In July, customers purchased 1,500 computers from the company. Of those computers, 45
were returned. Based on the number of computers returned that month, what the manufactuer’s
prediction correct?