skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。
4 K% w) f; D' L4 M7 `; Y+ gthe answer is -$97 for sure. 公仔箱論壇+ N. M( A& |7 C6 h. [
Think about it this way + O: I' C0 y5 e6 I% A
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)$ u& ~# `; a$ Z, W- D8 N
2) Now, the owner discovered that the 100 bucks is fake. You can th ...

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" K) t% J; l/ Y  B: h, ztvb now,tvbnow,bttvb1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong; R2 y8 t+ b, [, R! u: ]
5.39.217.76$ |2 a# q. D  v
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。) {3 C, u% H; \& K; C+ D: Y
公仔箱論壇" C2 |1 X, l9 {/ {& v+ H
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 ???
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. k% a5 p6 N* wdun 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- ]& e$ n# U8 S# m4 T
5.39.217.76  y% m9 W% Y/ g8 M9 [
[ 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!!!