I was talking to a friend and the somehow the following simple problem came up (which I got from another board some time ago), which goes someting like this:
Alice and Bob buy rice each Friday from the same store, getting the same price per pound each time. Alice always buys $1 of rice, while Bob always buys 1 lb of rice. As the price may be different each Friday, over time, who gets a better deal in terms of price per pound?
So far, I have two different proofs for the correct answer, though there may be more. At first, he didn't beleive me that their overall price per pound would be different, but a quick example took care of that.
Him: "Not rice, but gas!"
Me: "... genius!"
And then, a few moments later, I smacked myself because one's usage of gasoline is determined by external factors that render this result inapplicable. Bummer.
 VorpalNeko · Tue Jul 01, 2008 @ 05:03am · 2 Comments |
