原帖由 prozzy 於 2007-5-18 23:05 發表。 
; V+ |# y, M# l1 M* @tvb now,tvbnow,bttvbthe answer is -$97 for sure.
3 M1 E$ e! I; yTVBNOW 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
& m. F' {7 b8 `0 h. K3 l: a/ }" x1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)www1.tvboxnow.com" A% g! g+ B+ Z
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
! ~1 \- b- |% v1 t j) n% q7 Gtvb now,tvbnow,bttvb
7 r) N5 l* |$ k9 }7 j0 Owww1.tvboxnow.com1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
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think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.公仔箱論壇$ C# B( l* n: W' D' J
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。7 @9 @7 L* `% `4 t$ j- z
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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