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。4 O) @, |+ x5 L4 Z# U
the answer is -$97 for sure.
7 _0 V3 u) B' k* ZThink about it this way ! z& K4 ?" G) x) k0 {
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
+ i" g% ]- t! ?; Z6 z公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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1 ~9 m& r; F* S+ J. l1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb3 U7 H8 |8 e$ x1 @# J
8 C4 |! j. |0 S6 j" c5.39.217.76think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
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& r$ j' B+ w2 P! J6 {7 S2 a% f( w公仔箱論壇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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