原帖由 prozzy 於 2007-5-18 23:05 發表。 
, p- I/ [$ `3 _+ `, Ktvb now,tvbnow,bttvbthe answer is -$97 for sure. 公仔箱論壇 ^2 D7 f* L f f8 D7 z
Think about it this way
- A- a2 Y' a& Y% G ~8 W1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
; @ v! B5 a1 P! q) k2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongwww3.tvboxnow.com$ N- B* G& v" h% X1 |* _; E
公仔箱論壇" a0 G0 e% {, Q, R# [, |" A& m& y/ p
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.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。8 N3 k1 A' T! V8 c: ~3 @1 _
$ S/ e8 F s1 g2 ^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。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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