skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。 公仔箱論壇3 R" u; j( I4 `9 r: Q1 B
the answer is -$97 for sure. 公仔箱論壇4 F: H4 G0 `3 Y. H
Think about it this way 6 B5 u+ s2 r" T0 e/ K; T0 z
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
& b" G9 ^0 H% H0 Z5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ...

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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 wrongtvb now,tvbnow,bttvb8 R, l! {. ^& p$ Q+ F

4 k* g: P  D+ \3 M& ~tvb now,tvbnow,bttvbthink 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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0 w" U( ~  p& J& E- `- B0 }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 ??? 5.39.217.76( C7 ^1 Y0 f5 F2 e0 w

3 G) [7 u0 f/ n$ e公仔箱論壇5.39.217.76! m8 z# K" p0 j
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公仔箱論壇' a/ X, G2 J6 p$ Q* D7 U) k0 y: T: U
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[ 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!!!