原帖由 prozzy 於 2007-5-18 23:05 發表。  5.39.217.76! [) y% t" y% K2 c% V
the answer is -$97 for sure. 5.39.217.768 d( X9 P E( u
Think about it this way & R, H9 Q: |2 ~
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇/ Q+ [ T: g% i0 _- u% _1 m
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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) u: ~* o% P5 m9 S( H. U7 o公仔箱論壇1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
" S3 G9 T4 ^2 A* R5 `5 p6 Otvb now,tvbnow,bttvb
: u( b- `+ }8 y# p- L( D; y) N! \think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.tvb now,tvbnow,bttvb. {9 O' C3 @6 R/ U1 @1 T
5 t$ l. {4 p! J5 S Gtvb now,tvbnow,bttvbI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |
發表於 2007-7-10 05:18 PM
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發表於 2007-7-11 03:19 PM
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