原帖由 prozzy 於 2007-5-18 23:05 發表。 
3 O2 z# G4 X5 H6 O9 K, w2 D公仔箱論壇the answer is -$97 for sure.
) c* I/ ]' Z9 u5 H1 u4 g kTVBNOW 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。Think about it this way
, ]8 n) \& d! ]5.39.217.761) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb8 R5 g- h2 P9 `/ _
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
* M$ S/ F: D0 P8 H* u% n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 wrong2 T) Z0 m! q( c: Z' ^# {
tvb now,tvbnow,bttvb7 a3 @/ Q+ Q( T$ Q+ D6 q* u
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 j; a [* u7 h+ X( m4 j7 c
5.39.217.768 u r- M& y6 ^7 L0 L) X% u
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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