原帖由 prozzy 於 2007-5-18 23:05 發表。 
4 b3 y1 P5 n" C1 R5 {the answer is -$97 for sure.
/ z5 }8 G& o. r4 @* M 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 公仔箱論壇5 D& w! {4 n @/ k2 U' I# Y( o1 w
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
; Z$ M4 Z% g: k+ h4 @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。2) Now, the owner discovered that the 100 bucks is fake. You can th ...
公仔箱論壇" E# \8 a, w" Q8 m4 }* C
3 S9 i" Y* S7 B$ x2 `+ G t4 ATVBNOW 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。1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
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; ]3 l: P& J5 G) q2 L9 _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.
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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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