原帖由 prozzy 於 2007-5-18 23:05 發表。 
' |5 o; d1 S; k5 b5 |4 K! mtvb now,tvbnow,bttvbthe answer is -$97 for sure. 5.39.217.76 J# W5 U- G9 l4 z
Think about it this way
6 I: v: [4 O% n# n1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
% \+ j+ U8 a$ M; S- f4 u8 p2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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: ^! e; t# A3 V+ c' L1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong5.39.217.76' V) |# m# R. n1 ~$ O/ ], Z
' M4 k* J$ q1 V5 a: B0 ~3 G. Ttvb now,tvbnow,bttvbthink about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。7 L) p* Z! Z* n G* I6 y$ L
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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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