原帖由 prozzy 於 2007-5-18 23:05 發表。 
: ]5 ?: Q) y" q; e* c( ]( R公仔箱論壇the answer is -$97 for sure. 6 j- u4 Y3 _( y* @) ?8 b
Think about it this way O; U0 l4 ~) ?, c/ Q
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)$ a2 g" m# k% E" X K* p
2) 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 wrong( z ^8 a8 }8 O" E
tvb now,tvbnow,bttvb- G& m3 `+ K# `$ `2 i1 z
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.) H) [8 i1 |2 b: {: H4 H+ W" B
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。& Z. h/ |+ R) b
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 2007-4-9 06:27 PM
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