原帖由 prozzy 於 2007-5-18 23:05 發表。 
3 y: h0 u: K4 @8 C2 _9 gTVBNOW 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。the answer is -$97 for sure.
6 `6 c3 d6 ]* i$ f0 }Think about it this way 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。5 h: W2 t0 R8 U* w! F
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
$ |3 H7 d# k1 L7 E% \- T5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ... & ` s# @; a5 _tvb now,tvbnow,bttvbtvb now,tvbnow,bttvb1 J7 F j" [7 k7 d! h$ J& h
公仔箱論壇# F* p. a" c/ S& X+ n
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
* L h: s" X9 j+ R 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。6 m: }) J0 r( d/ r& U3 R
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.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。! s) ^" P4 o; n6 B
( ?1 z2 ?7 h' f( J5 K9 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. |