skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。 公仔箱論壇4 r+ a) ]- J8 X3 N
the answer is -$97 for sure.
- z  x" o9 y$ w$ m' S0 V& E5.39.217.77Think about it this way
4 v# Q6 M  W8 L# L. s4 c8 ]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。1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)2 E( l4 K8 J* N7 z* ~1 g
2) Now, the owner discovered that the 100 bucks is fake. You can th ...

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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。* o: k  G/ p1 {, E& Z0 y
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong2 W8 \; T' b1 D' S2 C: d
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think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
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$ q  V8 B2 J+ {2 g: A- E! U5.39.217.77I 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 ??? 5.39.217.77& F6 }5 ^8 T' {9 ]- D

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5.39.217.77% q2 \2 X6 g) U% A( E5 G; x
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
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8 A; i- ?2 r% J: {! D, q; h[ 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!!!