原帖由 prozzy 於 2007-5-18 23:05 發表。  tvb now,tvbnow,bttvb* S r1 A5 Z. G& U# X: T: [
the answer is -$97 for sure. # z& q& S3 h4 m* l% x4 Y/ Y: @! J
Think about it this way
% B8 G/ j, `" D3 S5 ~+ q1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。) ^) d& V* L4 ]/ J( L4 o% s
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
7 O7 H% A/ {) v. CTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 8 u5 T: L" D, c. I3 [+ e& c
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
+ s" I$ O% j. P( r5 n3 g4 |% Z5.39.217.76 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。* O+ W6 F! G5 |9 r) z b: ^, x
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.5.39.217.76. ^. z0 w7 e. r" F; G# `
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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. |
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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