In Canada, I purchased a six pack of Coke Zero for $4.99, but when I got back to the hotel, I noticed that the
cans were 222 ml. Back in Colorado I pay $10 for three 12 packs of Coke Zero (12 ounce cans). See
the pictures below for a comparison of the cans.
Compare the Canadian and the Coloradoan prices per ounce. After computing the Canadian price,
be certain to use the exchange rate that was in effect at that time: 1 U.S. Dollar = 1.07 Canadian Dollars.
Solution to the Problem:
The Canadian Coke Zero costs 11.1 cents per ounce, which converted to U.S. currency equals 10.37 cents per ounce.The Coloradoan Coke Zero costs 2.3 cents per ounce.
First, you must convert milliliters to ounces, using 1 ml = .033814 ounces.
So, 222 ml = 7.5 ounces, and a six pack of 222 ml = 45 ounces.
Therefore, $4.99 / 45 ounces = .111 or 11.1 cents per ounce.
Now, you must use the exchange rate: 1 U.S. Dollar = 1.07 CAN Dollars.
So, 11.1 / 1.07 = 10.37 cents per ounce (in American money).
In Colorado, three 12 packs of Coke Zero contain 432 ounces.
So, $10.00 / 432 ounces = .023 or 2.3 cents per ounce.
Using the Canadian price, it would have cost me $44.80 in U.S. dollars to purchase three 12 packs of Coke Zero that I got for the price of $10.00 in Colorado!
Correctly solved by:
| 1. James Alarie | Flint, Michigan |
| 2. Marley Newton |
Mountain View High School, Mountain View, Wyoming |
| 3. Colton Aimone |
Mountain View High School, Mountain View, Wyoming |
| 4. Keith Mealy | Cincinnati, Ohio |