原帖由 prozzy 於 2007-5-18 23:05 發表。 
# B3 H0 S" f ]+ }the answer is -$97 for sure.
: K% F. _. s; s) x6 o$ l5 kos.tvboxnow.comThink about it this way
7 H5 }; F4 X; G p- G8 Vos.tvboxnow.com1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
$ G* N* T, X/ k! N" n" r5 G公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ...
' [2 U4 u/ P3 ^1 `! y" T% }
- N' w ?5 }; y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
* u+ c; z7 E# ?8 W/ }3 f TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。; g' @6 ]4 S9 a, ^. Q) i
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.: G9 n g# g( ~
5 B( @' }/ Z: E7 g$ v$ I7 O公仔箱論壇I 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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