原帖由 prozzy 於 2007-5-18 23:05 發表。 
* O" S9 n4 L% X2 c5 X7 v! v3 X公仔箱論壇the answer is -$97 for sure.
5 @# U7 O6 p7 @6 `0 Y9 xThink about it this way
- C* P9 h& o, T0 PTVBNOW 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。1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
0 N5 ~# H' E7 I& h3 }2) Now, the owner discovered that the 100 bucks is fake. You can th ... , C1 [( A: X# s; btvb now,tvbnow,bttvb5 U6 N) `7 j* Q
; o$ B$ x* c$ z- J* P2 ?1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong7 K6 P& [! U8 u" O; n* y
+ c+ g5 @% Y, l# t! y$ [& Htvb now,tvbnow,bttvbthink 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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- o% A; {& H4 }9 X" u- Q( S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. |