原帖由 prozzy 於 2007-5-18 23:05 發表。  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。# z3 }7 q+ }' k2 T
the answer is -$97 for sure. 5.39.217.77. K3 T3 u5 W' Y" \, N) ~, _
Think about it this way
* J0 B3 s- h5 Z, n* e& v0 c) J$ }tvb now,tvbnow,bttvb1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)5.39.217.77, F5 {$ }1 x% q6 F
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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) X2 c' i! Y+ t5 x. M stvb now,tvbnow,bttvb1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong5.39.217.773 Y, H6 P6 R* ? v6 q( |
`4 J) X% B. |" E9 A4 q! {8 b公仔箱論壇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% W0 j2 R( I* \) Q! z( m# F
tvb now,tvbnow,bttvb- E4 w/ o4 e* T) ~: [
I 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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