原帖由 prozzy 於 2007-5-18 23:05 發表。 
6 ~8 A2 E, P, W1 A0 K) 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。the answer is -$97 for sure.
" r$ k* u: u/ e9 \. UTVBNOW 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 5.39.217.761 P5 S* m3 @! l" K+ e
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
! S1 Z; _: @$ k5 q5.39.217.762) Now, the owner discovered that the 100 bucks is fake. You can th ...
{: R% D8 I) Z6 d q7 N$ M5.39.217.76
5 [: Q9 E% @" {2 V公仔箱論壇1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
( A% y& K% `% L# W' ytvb now,tvbnow,bttvb 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。- i! L) d9 S/ j \( r3 p. v
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/ r/ y c( E0 [7 P
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。+ N9 P/ k9 A# c# A4 y6 W/ \
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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