原帖由 prozzy 於 2007-5-18 23:05 發表。 
; A) L j- L# c' v" h& r4 c5 f5.39.217.76the answer is -$97 for sure.
( _4 t4 ^4 y5 k B2 C3 U1 L3 jTVBNOW 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。Think about it this way
3 P! k4 W9 N4 j. m公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)5.39.217.764 P( {; n' F% k( m: v5 n$ |
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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% U8 S( s% b( _9 M) b1 _: J% n1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong公仔箱論壇" M9 S$ U9 {1 p7 B7 i L ?
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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.
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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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