原帖由 prozzy 於 2007-5-18 23:05 發表。 
& j8 P2 P! y5 W0 a3 x$ g" a0 f1 _0 K5.39.217.76the answer is -$97 for sure.
$ M) k/ I Q+ e+ o6 Z% p ftvb now,tvbnow,bttvbThink about it this way
0 ~ M3 _! T% e( g- i& ?+ s5.39.217.761) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇. {8 p9 F. }* A# T( D, A+ `1 i8 }
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
) B" d- [; }8 L1 X7 E( Ttvb now,tvbnow,bttvb1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong# o2 Z: C2 A: o" T
5.39.217.76$ U; u; F8 }9 C, `' h
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.6 e; _: t l4 j; Y
' q3 D* l! p, g; X* p. [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。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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