原帖由 prozzy 於 2007-5-18 23:05 發表。   
8 n6 J0 d! r( H' `; gTVBNOW 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。the answer is -$97 for sure. TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。8 `. s$ e6 H4 Y0 z- S 
Think about it this way  
4 l1 @1 J, q, |+ R2 p/ M- `; v! q公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)6 L5 d" ^' K; T) B3 Z& r 
2) Now, the owner discovered that the 100 bucks is fake. You can th ...   3 e- ]- ~; B6 Q* q  ~7 `' Qwww2.tvboxnow.com. E; u& c/ _2 R& `# } 
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong 
* g1 n0 Q* E( f. h- ?, g# O% ywww2.tvboxnow.com  
, v2 h& [+ [4 g$ N. _; J- j- Rthink about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.$ P1 S( N5 D, Z 
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I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |