原帖由 prozzy 於 2007-5-18 23:05 發表。 
1 W; K2 v& ^+ F7 k4 x& PTVBNOW 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 -$97 for sure.
2 z# t/ O# o# h0 ytvb now,tvbnow,bttvbThink about it this way
' u& z+ @+ A- [. Y4 Z$ X8 p1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)# c9 c/ B1 G$ L6 W) n8 }, [
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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- S/ j7 Z4 s" a1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongTVBNOW 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。$ n& U/ e( Y4 h3 F" d ~+ M: X
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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.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。8 V1 I r; a2 k' }" K5 ^
tvb now,tvbnow,bttvb/ Z2 K) D- O* {
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 2007-4-9 06:27 PM
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