原帖由 prozzy 於 2007-5-18 23:05 發表。  8 z2 D8 i: a# O0 ?8 t
the answer is -$97 for sure. 公仔箱論壇1 F; I) N5 t8 \: R2 O" Y: v( P2 I
Think about it this way ' p4 y1 m- B' H, C# y
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
{) X; C7 a! C; f+ w" s2 K- T: q+ {公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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公仔箱論壇2 F0 b4 g! K' }4 q4 Z* d
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong# {# p( Y1 o( o1 `6 n( J9 X
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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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0 v" h2 U! r/ V6 g; v- z2 @! V9 nTVBNOW 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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