skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。 9 d& b9 N5 |* w0 w% q8 G
the answer is -$97 for sure.
3 h" u4 D( `! ]0 D" w) t公仔箱論壇Think about it this way
. C9 d3 B" L/ z2 S3 I3 ~! ?' ]tvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
7 L2 s, m) r+ l  p$ R0 ~! [6 m$ \4 r2) Now, the owner discovered that the 100 bucks is fake. You can th ...

8 \5 I5 d0 H- m% N9 T* Y( ~, v+ A公仔箱論壇公仔箱論壇, @4 r% I! _7 ?7 L9 j  N$ _
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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
' c4 @2 B9 U( `8 c. s 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。4 M- Q" R3 D" H& j9 U, T8 B
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
7 p; Y5 l0 t' s- j0 m0 Z4 ~TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。
2 B$ v/ H$ w/ R0 K: J1 v+ o公仔箱論壇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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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。( t- O" N% r. ?% x5 j2 S0 @' d5 K# G
公仔箱論壇. L9 R! x2 I* A/ \. ], F* ?
[ 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!!!