原帖由 prozzy 於 2007-5-18 23:05 發表。 
# K* ] N- E+ g- Cthe answer is -$97 for sure. tvb now,tvbnow,bttvb+ M9 |) c# }7 M4 k4 _! w2 [
Think about it this way
- B' Z3 T! F- m* |: M1 q0 q. fTVBNOW 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) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
$ f2 X2 c: `0 T4 Nos.tvboxnow.com2) Now, the owner discovered that the 100 bucks is fake. You can th ... os.tvboxnow.com6 p/ s+ Z* y2 s. f8 j% @* S
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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 wrong
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- t. t" k }. e# j( D3 e: A! Kthink 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.
4 j8 h0 j( A, e \- K3 b9 N2 N' d+ J# l 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。9 e @- l9 W- p5 u1 f
I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |