原帖由 prozzy 於 2007-5-18 23:05 發表。 
; v$ i% A' h/ z: Z* ~$ o% z, g+ @1 ?公仔箱論壇the answer is -$97 for sure.
1 |( n0 U7 t7 V) K6 y! h& }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。Think about it this way
% d' O- T8 w& O+ O. S7 v; u3 b公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
+ ^9 ^* A' J' {% K0 {5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ...
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongTVBNOW 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。# [2 R* }; S( r+ R, ~ F: W
tvb now,tvbnow,bttvb. b4 h3 M+ x- o7 {- t0 `
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.
$ `! E1 x9 g/ N: _2 { Q) B+ n1 X1 u5.39.217.76
2 N/ B% }4 m WI 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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