skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。 5 X/ `& C1 Q; R+ @- [% r# b4 t
the answer is -$97 for sure.
- s' a* h& b4 x6 O- I8 h' M1 Xtvb now,tvbnow,bttvbThink about it this way 公仔箱論壇! K' j% u) d/ h/ E) \
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
2 h1 ^7 n- u; \  T& R+ N5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ...

2 E  x3 X2 H) R公仔箱論壇, V, y4 ~9 z! r% D
5.39.217.76- k- @* K/ @( R2 e
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
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# ^; F' ?/ Y( jthink 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.+ b6 b' v/ K- C* W9 Q; j
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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 ???
3 k2 a9 ]" N/ c% Y7 q4 P4 Gtvb now,tvbnow,bttvb

7 q9 {, G; P. }( PTVBNOW 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。, R) w2 D+ g8 U1 r: l7 H
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+18TVBNOW 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。) l. m$ S' ^, F1 z" Z& e% l" H+ y* z0 h
公仔箱論壇9 R7 v9 I( ~/ O( B
[ 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!!!