原帖由 prozzy 於 2007-5-18 23:05 發表。 
0 n1 |3 w) S! N% @: }tvboxnow.comthe answer is -$97 for sure.
" F3 s6 y5 z! @' d7 T/ WTVBNOW 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。Think about it this way
7 m% I2 o9 g4 y( W( H公仔箱論壇1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvboxnow.com1 J& u' ]4 [, { _/ W+ Z& l% B' h$ b
2) Now, the owner discovered that the 100 bucks is fake. You can th ... $ Q3 M( B8 C3 F# e y' iTVBNOW 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。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。. W" @4 t) L6 O" b) D( {
# i7 l& ~( m) j% {' s* d9 e- D' g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! k% o3 R% [/ a+ A( o, E
# z1 Q0 N+ Z' H% 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。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.公仔箱論壇- J |0 y, R4 H k
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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. |