原帖由 prozzy 於 2007-5-18 23:05 發表。  os.tvboxnow.com& J/ f8 D8 a; P+ q+ H
the answer is -$97 for sure.
8 Y- g' ^3 _( MThink about it this way os.tvboxnow.com) T' C: X; C0 C w( s% v
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
3 T7 ]( V" b0 J0 d' j4 Q2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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" c& v& ?6 x- h+ j2 u0 fos.tvboxnow.com1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
3 h; z- L. z, R 公仔箱論壇. W* Z; X% w* P: X% A
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。! L- A0 _5 X: S7 `# p
6 }4 b1 M; X% i |: g" Yos.tvboxnow.comI 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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