PRACTICE SET
B
After two days of the sale, of the original number of books in stock is left. This means that altogether, of the original
number of books have been sold. Of the books, were sold on the first day; can also be called If were sold in two
days, and were sold on the first day, then on the second day must have been sold. You are told that 4,000 books were
sold on the second day, so 4,000 must be of the original number of books. Now you need to determine what number 4,000
is of. Call the number N. If then
1.
J
This problem needs to be done in several steps. First find out what the sale price of the radio was. The discount was 20%, so
the sale price was 80% of the original price.
Now figure out how much tax Brad paid. The tax was 8% of the sale price.
Now just add the tax to the sale price.
$94.40 + 7.55 = $101.95
2.
Percent • Whole = Part
80% • $118 = Sale Price
0.80 • $118 = Sale Price
$94.40 = Sale Price
Percent • Whole = Part
8% • $94.40 = Tax
0.08 • $94.40 = Tax
$7.5520 = Tax
$7.55 = Tax
D
Each weekday Sheila earns
$5.00 • 6 haircuts = $30 per weekday
Each Saturday Sheila earns
3.
