skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。 公仔箱論壇& I9 `( @* T' @
the answer is -$97 for sure.
8 X) m" w! B$ t9 ~: L3 Y公仔箱論壇Think about it this way 8 u$ g6 o( S5 \( y7 h, `- E+ l& P5 H
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)  _2 k! [( `- {& m
2) Now, the owner discovered that the 100 bucks is fake. You can th ...

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 w% Y8 F( c5 c' E( s# L& P
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$ ]6 U% u$ X9 V3 h$ Z1) 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。! J5 b9 s- P  l) Z! N  t
5.39.217.76% x8 E8 A% R/ H2 w3 K
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.* u4 M; e9 f8 O. `$ o
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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 ???
! W; \# k5 T4 s' \1 e8 \+ A公仔箱論壇

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) }, @/ h, Q' }+ N( y/ |6 A8 k0 Rdun 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+18
+ Z1 x: t6 B8 N7 }/ \5.39.217.76TVBNOW 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。% S6 D" X8 L" q+ Q  t
[ 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!!!