原帖由 prozzy 於 2007-5-18 23:05 發表。  公仔箱論壇" U4 W. s- C9 n; F
the answer is -$97 for sure.
* r" {1 t7 c% \6 }7 QTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Think about it this way * {$ u( H# X K& {. M
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)9 i, Q! Y9 g! z I5 u) V
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
8 O0 z8 b* y+ H- Z2 b' \7 |5.39.217.77:8898
8 k6 C$ v* Q7 K% k/ otvb now,tvbnow,bttvb1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
8 V5 {! ]! s0 s" C d" t5.39.217.77:8898 公仔箱論壇5 ]5 l+ x. i/ g* h$ ^
think about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.
5 I( @( d( E/ E! K h6 _0 S$ }# Utvb now,tvbnow,bttvb
& D+ R t3 G, ?7 fI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |
發表於 2007-7-10 05:18 PM
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發表於 2007-7-11 03:19 PM
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