原帖由 prozzy 於 2007-5-18 23:05 發表。  * `4 P$ N8 P2 T$ K* g% a5 g& N0 X
the answer is -$97 for sure.
; `* r/ P! p5 v8 `1 r8 L: Dtvb now,tvbnow,bttvbThink about it this way
! `8 s# S @- L$ N3 Y5 @/ itvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇, V+ Z' a9 `* F8 F) B+ d$ h) c k
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
/ j: W0 ~6 E n3 }, Y/ |) Q) QTVBNOW 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。 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。0 T9 ]8 B# M8 ^. a0 h
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.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。+ O }% ~1 r% r- P/ b/ Q
6 O; v* b9 d3 d. t1 B9 g: cTVBNOW 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。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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