原帖由 prozzy 於 2007-5-18 23:05 發表。  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。; U( l% b+ E) q$ u, C) j
the answer is -$97 for sure.
, ~, E" ~& [4 A$ S) c公仔箱論壇Think about it this way
5 F3 _" I5 _7 C! i1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
7 N8 I3 ~' {0 S+ Q p$ n6 htvb now,tvbnow,bttvb2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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% f# w2 N% l, B5.39.217.761) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong- j5 g5 G% Z- H: a5 `5 X& e
! ^, G: J% W# s; Z公仔箱論壇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.
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4 N2 e9 n) I6 h2 S- Z% tI 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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