原帖由 prozzy 於 2007-5-18 23:05 發表。 
* Z, ^; Y2 y. r) A+ t. FTVBNOW 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. 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。- W- D/ N' T: B( H8 A
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。7 q ~# h. B4 p2 D& i
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb: g1 ?- ?* [$ l% s: \6 E; J
2) Now, the owner discovered that the 100 bucks is fake. You can th ... ) |9 i _% o4 O w% u A7 htvb now,tvbnow,bttvb, ?6 G* n5 }1 ^1 M" T5 V0 u
tvb now,tvbnow,bttvb" ^0 S; v2 N$ r, f
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
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0 n! e% V$ e8 R* p: ^; I3 r6 Vtvb now,tvbnow,bttvbthink about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.tvb now,tvbnow,bttvb3 G# w0 Q3 b5 w0 U) L
6 T7 ` E0 R$ j T) \# ~I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |