原帖由 prozzy 於 2007-5-18 23:05 發表。  5.39.217.760 H+ E% [: A8 n! U9 i6 ~
the answer is -$97 for sure. - s; {5 Z7 o) b( [# Q9 I
Think about it this way # l: q" o1 \% ?7 T# S s; B; y
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
, V6 l. q7 m7 J, U9 F; KTVBNOW 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) Now, the owner discovered that the 100 bucks is fake. You can th ...
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* h2 e5 P: `6 }' u) V {2 h1) 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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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 }8 A8 T, n7 r/ M. o7 Z: h5 Gtvb now,tvbnow,bttvbI 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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