原帖由 prozzy 於 2007-5-18 23:05 發表。 
6 U+ _6 n7 B! \& P o! DTVBNOW 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。the answer is -$97 for sure.
: N, @6 k- y3 e) jwww1.tvboxnow.comThink about it this way
! I1 k R; \ utvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
0 [ ~+ U; i3 D公仔箱論壇2) Now, the owner discovered that the 100 bucks is fake. You can th ... . p9 y- e) [( B, o [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。, R# j( z! z j- H0 Z, z1 d) r2 I
5 @& W% n/ l& Nwww1.tvboxnow.com1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong- o& j. @: C# p: J' |
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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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0 q& X3 d, [8 N( c8 X2 a. Pwww1.tvboxnow.comI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |