skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。 . l. _% |- ?9 l# a7 _9 V  U
the answer is -$97 for sure. $ h6 A8 ?) V- O2 I9 p  F
Think about it this way
9 I! y: V% e! p! K5.39.217.761) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
% `# `! d2 |; T! \. _+ A$ O公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ...

5.39.217.76, A0 K2 N5 w! u' W9 ?2 X

+ z+ E6 o/ Y8 N7 |5 G8 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。
& T  D4 m# n/ `* m$ g公仔箱論壇1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
# C2 G) A5 p. K0 [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 i4 L- d/ B$ Y) c/ W  B
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.公仔箱論壇* c0 ]) P0 [( G

8 `/ F- e* S& K) 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.

skybirds

??? 369258 ? 2007-6-28 23:29 ???
& d" u) Q8 P6 u2 z0 [% q公仔箱論壇

. F: v7 Z5 X" k( ^2 a/ 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。tvb now,tvbnow,bttvb( ~/ }. k4 C0 d; W
dun 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+185.39.217.767 p2 f7 P5 E1 D7 Y

* E/ P2 z1 ]3 q( \" j4 y% B" D5.39.217.76[ 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!!!