原帖由 prozzy 於 2007-5-18 23:05 發表。 
: [6 }( @# N9 c% q公仔箱論壇the answer is -$97 for sure. 3 g; Y8 [+ H- @
Think about it this way
) Y" T. r* R" w& g1 n: l; }$ z! 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。1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
0 u G( v0 b( |! Q! y" j' {5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ... ! W$ t j1 O, }6 _+ d
3 ]' d# b* y3 ?$ X) o- k) q4 C公仔箱論壇
, r7 d$ l% `* T- I# \+ g8 N4 _/ i( x" H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
' N3 j: p0 _8 Y/ T0 _- o1 u5.39.217.76 tvb now,tvbnow,bttvb( ?+ N( B/ K+ x+ n; v
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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I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |