1988 AJHSME Problems/Problem 23
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Problem
Maria buys computer disks at a price of 
for $
and sells them at a price of 
for $. How many computer disks must she sell in order to make a profit of $
?
Solution
This is the equivalent of saying she buys 
for $
and sells for $
, so for every dozen disks she sells, she profits $.
She needs to profit $, so she needs to sell 
dozen disks, which is 
See Also
| 1988 AJHSME (Problems • Resources) | ||
| Preceded by Problem 22 | Followed by Problem 24 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
