原帖由 prozzy 於 2007-5-18 23:05 發表。  ' q# s# m/ ?5 Z5 o) s6 N
the answer is -$97 for sure. ) c/ e* c4 G1 S8 N3 j
Think about it this way tvb now,tvbnow,bttvb+ x) n2 Z! u1 J+ E, m! ~" F" ^* d
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。9 a, E& H& |. f' _) `
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 wrong
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; X- g7 D! B( n9 K, R9 G# Bthink 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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