skybirds

原帖由 prozzy 於 2007-5-18 23:05 發表。
' t$ {7 H# l1 m1 S" ~, z2 t( W: `the answer is -$97 for sure. % o, h6 x! [" L: P1 k/ J
Think about it this way 公仔箱論壇+ m! m% I  c0 {3 f8 R! V7 |
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
- u, g( y# Q, `3 z5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ...

9 S2 I! q3 _4 j& Z- \5.39.217.76公仔箱論壇5 V/ v) c7 y/ K) X3 Z
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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
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/ J" Q) r& A% R' z/ z' ]5.39.217.76think 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.tvb now,tvbnow,bttvb, m) O9 `/ G' }7 V' C
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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 h/ I9 z9 d! Q3 P1 z

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 V7 o+ i' a. J) X3 ]6 U' x/ `7 D; b
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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+185.39.217.76$ s0 N! R5 j0 p/ S' |4 i

8 T! p& k* G. {5.39.217.76[ 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!!!