原帖由 prozzy 於 2007-5-18 23:05 發表。 
9 A# `5 Z/ l) h9 {# {6 rthe answer is -$97 for sure.
+ z3 \4 B1 q1 N, ^2 n1 u4 ^& n9 y! 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。Think about it this way ! ~5 m: _' ~. m) H4 M
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)5.39.217.761 [1 y( L. G6 Z! r
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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C9 w! e0 G( S1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb8 \: `& v+ ]5 Z3 V; N( U
tvb now,tvbnow,bttvb: B7 C9 a. a0 H9 A
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.2 B2 P# G9 L; E" K# \6 m/ k5 ~
. L; n3 G+ S2 z, STVBNOW 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。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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