原帖由 prozzy 於 2007-5-18 23:05 發表。 
$ e2 d, D& _$ O/ Rtvb now,tvbnow,bttvbthe answer is -$97 for sure.
# B! h! d- }: Z% U3 i7 B* ^% `2 ]0 I, TThink about it this way $ f& ?- k Z3 R# Z
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)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。/ B5 V6 b* o8 L& |' V. ]
2) 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 wrongos.tvboxnow.com( ?: d% R) t( l' B! I) _7 b5 Q6 b
) v& G- a1 w! Q ^3 p9 g" c5 @7 W! ~, ethink 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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( z" ^7 S% z) K# c1 j9 o+ ^I 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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