原帖由 prozzy 於 2007-5-18 23:05 發表。 
7 z! s$ E W% [0 x8 Q5 @1 Htvb now,tvbnow,bttvbthe answer is -$97 for sure.
) x: |8 g% ]6 O8 [ qThink about it this way
/ H- W, z2 n7 m8 K) S4 f1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
3 |- V/ }% X& e, }& s( W' N5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ...
6 x4 k# a* V. q5 Z$ l6 X* M$ `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。 & j6 n! q' ~3 C9 h! Q' K
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong" F2 }- W$ c4 k; N$ Q' X! ^3 O7 R4 U
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。( d" r4 `. w5 H5 G3 _' w9 H4 |
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.
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% v7 G1 E7 y# A4 B _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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