原帖由 prozzy 於 2007-5-18 23:05 發表。 www3.tvboxnow.com& G4 ^6 N" a8 v7 r: j. F, [
the answer is -$97 for sure.
! Z; q! I( \, ?www3.tvboxnow.comThink about it this way tvb now,tvbnow,bttvb! q; s8 X2 s" g+ k
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
3 ~4 S. h. z" c; ~$ {' d/ ~: T* u7 G公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ... 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。1 d* P5 f/ z# T# }% a1 ]$ v
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! l9 j1 ^. K! W2 q# m: v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
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2 u6 m' p5 u7 }% Q! K# ?1 J5 K6 C1 W公仔箱論壇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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- L" L4 J( X/ U9 |* e# vtvb now,tvbnow,bttvbI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |