原帖由 prozzy 於 2007-5-18 23:05 發表。 
" D) j+ D; }$ ?6 }5.39.217.76the answer is -$97 for sure. tvb now,tvbnow,bttvb& D; ]* t2 s# U- [. ]
Think about it this way tvb now,tvbnow,bttvb; c B9 p {1 e1 r5 P8 S; c {+ v
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
/ F# a! {0 _3 I W& t3 TTVBNOW 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) Now, the owner discovered that the 100 bucks is fake. You can th ... $ f7 W; v. a7 U+ z6 G* J5 @tvb now,tvbnow,bttvb
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0 Z \( _3 O# |- E公仔箱論壇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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: Z& u6 w, N3 Y' U5 Itvb 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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~1 n5 }: j' x8 tI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |