原帖由 prozzy 於 2007-5-18 23:05 發表。  " P. ~1 {8 B3 f: p8 G
the answer is -$97 for sure. ) {( ^9 j/ l! i; e! \# R3 I
Think about it this way
, S( P' i T6 v7 ^ N1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
! y; q/ P1 a0 x" N2 ?5.39.217.77:88982) Now, the owner discovered that the 100 bucks is fake. You can th ...
1 l& W4 R1 J5 I3 _1 q9 {. ZTVBNOW 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。 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。+ X4 O/ m l, h2 a4 P2 D- D( x
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong* A& G' R2 e' {/ w9 g7 M1 s; D& B
; T! _0 j' A, \公仔箱論壇think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。3 u- `2 n1 X4 N' p: Q( _$ I2 B
h; j% d1 U/ o9 \0 I) `( aTVBNOW 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。I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |
發表於 2007-7-10 05:18 PM
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發表於 2007-7-11 03:19 PM
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