原帖由 prozzy 於 2007-5-18 23:05 發表。 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。- p% i) } L" O' u
the answer is -$97 for sure.
4 [7 h4 j3 [2 j4 s N* cwww3.tvboxnow.comThink about it this way ; t0 K5 @# G1 |* A$ ]
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇: p0 N' x9 F; P! e2 g8 k' U
2) Now, the owner discovered that the 100 bucks is fake. You can th ... ( j( x& j d) L2 `+ J
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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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% R% ^/ x8 Y% N! }/ uwww3.tvboxnow.comthink 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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I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |