原帖由 prozzy 於 2007-5-18 23:05 發表。  公仔箱論壇5 P/ Z9 @( ~4 h. s2 f
the answer is -$97 for sure.
9 S' a3 ]! K6 l a9 nThink about it this way / \( q0 _ f5 U0 V& L9 |, g
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
8 i5 _8 ?% J) z& Q5 N* N2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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/ p2 Q% }% |8 \" t" `tvb now,tvbnow,bttvb1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。" ]8 K5 r8 k) ~& F* T: B# K# W) v
tvb now,tvbnow,bttvb$ e* f* D8 r- \6 n
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
! @$ s2 z3 T* s& S( D# }' OTVBNOW 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 w( X5 c3 V Y2 P- B3 ETVBNOW 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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