原帖由 prozzy 於 2007-5-18 23:05 發表。 
$ G, l9 O; ^0 V9 O+ Ctvb now,tvbnow,bttvbthe answer is -$97 for sure. www3.tvboxnow.com/ B/ K9 C% h& w% X+ Y4 d3 ?
Think about it this way
9 g( A1 v( b! n) S- H7 Q) ywww3.tvboxnow.com1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
" g: s4 j8 ~' T2) Now, the owner discovered that the 100 bucks is fake. You can th ... 5 V4 P& j' Z' x9 a3 e. B
4 y9 g' \5 j7 F1 V/ YTVBNOW 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。
* } b8 h. R! D1) 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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6 f& P, d- s* K. Jwww3.tvboxnow.comthink about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
5 V: D$ r/ D* y: N; ctvb now,tvbnow,bttvb
/ D! N. ~( m4 x \: q公仔箱論壇I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |