原帖由 prozzy 於 2007-5-18 23:05 發表。 
/ ~6 [! L0 F& \4 e1 Jthe answer is -$97 for sure. 3 q; E d6 A% W2 b! N
Think about it this way
+ E. u( M- W1 P4 A0 Q9 Ltvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)2 u6 }( {. x& p. w0 V
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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$ d0 u; Y* e; D6 t5.39.217.761) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong5.39.217.76/ ]! c1 ^: W$ F6 |/ M! Y+ Z w: y
, b5 l. F/ k3 G! P7 JTVBNOW 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.
* b4 Z t& |7 F( i2 t: F X0 B3 ftvb now,tvbnow,bttvb 5.39.217.76# j# J( @0 y. U' l: b1 r
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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