原帖由 prozzy 於 2007-5-18 23:05 發表。 
8 l1 U; ?4 ~! @, Qos.tvboxnow.comthe answer is -$97 for sure.
# e$ Q% Q0 l( c* GThink about it this way
/ r8 \& I1 @- q0 b/ Qos.tvboxnow.com1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
* g! P. L: Y5 g1 z h8 Ios.tvboxnow.com2) Now, the owner discovered that the 100 bucks is fake. You can th ... 8 T9 K( J! e2 z8 a
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1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb0 g/ [& G" f$ O ]+ g& y
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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.
# L. A, y3 C* `0 Z5 Fos.tvboxnow.com
+ h7 i- p# b \) P) |; x$ ATVBNOW 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. |