原帖由 prozzy 於 2007-5-18 23:05 發表。  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。) M: D( N5 Q) e1 w
the answer is -$97 for sure.
1 n6 \! W+ a( W$ M* S$ I# a9 OTVBNOW 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。Think about it this way tvb now,tvbnow,bttvb: e' L2 n' m$ a9 m
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
- V' U4 | i3 O' Vtvboxnow.com2) Now, the owner discovered that the 100 bucks is fake. You can th ...
' Y3 P% P: o7 g# G1 u) h4 l: wTVBNOW 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。
% g0 r. q3 {3 c( N* 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。1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
9 W5 U0 M# X) m) ?& M& Y. s) j% g3 `3 Jtvboxnow.com 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。9 Y! M, F h8 K7 d1 I1 g/ s
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.tvb now,tvbnow,bttvb8 T. y0 |0 i5 d$ `
8 f, G/ i M- I. QTVBNOW 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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