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。$ Z9 }6 I) {) S0 ]. Q" B; L
the answer is -$97 for sure. TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。/ d9 W! _( a$ ^* Z( U. R! g4 M# T
Think about it this way 2 p R, _" b, n! J4 b
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
% {& U! i3 C: J& b+ a: [0 r5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ...
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8 d3 K% F3 U( N. s% j# m, H公仔箱論壇1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
* ]9 ~" f6 f; K& a( {9 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。
' A- m7 u: v1 m+ O X1 W. 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, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。2 E6 l }$ Z) W6 V6 P7 H
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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. |
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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