skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。
. M% c* {( U7 t8 T3 T7 ~- Ntvb now,tvbnow,bttvbthe answer is -$97 for sure. TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。, e. Z. i, g1 A9 ?( v" A
Think about it this way
% z- R$ {6 u* v0 R+ X5.39.217.77:88981) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
. h# M% X# a+ |& `& `! o" Z公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ...

5.39.217.77:8898( n- t- F3 o. x% A

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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
% b1 `7 r! ?3 f% @9 _tvb now,tvbnow,bttvb 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。% `) d/ u8 n0 }  L
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 ??? tvb now,tvbnow,bttvb8 X% z3 f1 c3 v0 V7 ]

tvb now,tvbnow,bttvb4 p" C. \! R3 n" J9 @+ X" ?. l
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。7 I' V: i( S4 t& Z! l
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+18$ T" u' }) J, p9 _
tvb now,tvbnow,bttvb4 I, }. ?1 [$ i' ~3 e& ?6 m
[ 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!!!