原帖由 prozzy 於 2007-5-18 23:05 發表。  6 ?. Z: p# L1 f9 u& ?0 F
the answer is -$97 for sure.
2 A1 u* s- i+ Htvb now,tvbnow,bttvbThink about it this way
3 N d$ L/ W1 cwww3.tvboxnow.com1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
# X' W; Q' l- r( x" _- P9 Z* m2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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。3 h6 a/ _; Y- [1 E# c
tvb now,tvbnow,bttvb; c- J+ c7 |1 A
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong: ^2 O! X. F% Y
" n U8 y1 {( w& w* g. ? @( n9 Zthink 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3 i4 F+ X" Y; }; N n1 Z9 d d8 K
' \% Y6 y( c& k1 qI 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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