skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。
* s, k2 p3 q  s. m7 N0 {the answer is -$97 for sure. ( D. n; t1 I! s% w2 x
Think about it this way 5.39.217.77:8898( Z9 A" m5 G3 z3 c8 e
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。* ]) a0 M$ E, ?! K3 `" N
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
, A5 w9 v( a/ O0 r: x2 Q, u5.39.217.77:8898 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。! G2 ?/ E5 u# U7 I% @
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.

skybirds

??? 369258 ? 2007-6-28 23:29 ??? 5.39.217.77:88987 K; r1 `; E3 V! p! G2 \) S: c$ I

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+ K* E7 V: T% f$ ndun forget that guy, not only the $18 dollars product he got on hand, he also got $79 dollars on this hand, he paid a fake 100 dollars bill, it means he paid nothing, and the boss gets nothing too, so u need to add 79 dollars to the total.

230km/hr

97

joey80

179+18tvb now,tvbnow,bttvb; [2 @+ n7 G% N
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[ 本帖最後由 joey80 於 2007-7-11 07:08 AM 編輯 ]

skydn

118

mkcjojo

??

fisherdai

18+79=97

wuchingching

not 97 ma ?

mibird

197

kent8118

Thanks for sharing!!!