原帖由 prozzy 於 2007-5-18 23:05 發表。  tvb now,tvbnow,bttvb/ a, \# C+ M% X% t' c
the answer is -$97 for sure.
) t* ^( i* M! d# WThink about it this way
5 r7 e% l/ D- Z% h, w( ^2 [/ q& L1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)5.39.217.762 L8 }7 z+ K m( P
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
tvb now,tvbnow,bttvb: U# C0 l' x( R$ l! z. M* g$ B
: ^8 X5 B+ @% ~0 R$ D1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb0 L7 k/ X z! Z6 y
4 ?% E) k: C$ [3 _ s5.39.217.76think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。* `# I6 y5 C3 ]+ S; W& n* c/ n
TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。6 U, Q& m" Y$ Y K. q
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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