原帖由 prozzy 於 2007-5-18 23:05 發表。 
+ X" o4 l' V0 Atvb now,tvbnow,bttvbthe answer is -$97 for sure.
/ G, Y& V2 ]. M6 P' \9 t" z, jThink about it this way 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。& J* X6 w% q/ m
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
7 H$ A* d) N3 c2 N9 u* Z! b$ A公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ... , s3 g. y$ c5 k1 N% q, tTVBNOW 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。
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3 ^$ s( ~; s" I1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb( @6 C) n$ A' e9 @3 Z6 F# w" h# 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.
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' _+ a/ t# ~( S- b) |* DI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |