原帖由 prozzy 於 2007-5-18 23:05 發表。  5.39.217.765 D* J+ j) p1 G
the answer is -$97 for sure.
$ e$ `& H2 z$ ?5 R: z1 Ttvb now,tvbnow,bttvbThink about it this way
6 Y3 d& }! p V/ u1 v" U _5.39.217.761) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)tvb now,tvbnow,bttvb/ p# a: _. p( @' Z
2) Now, the owner discovered that the 100 bucks is fake. You can th ...
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。) i9 B6 n1 y. a) Z9 K
5.39.217.76. \0 W" B" t; I, T, s
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong" t% l* A) @1 n9 T+ R; a( B1 Z- c
7 |5 I7 s2 @8 [- [: 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。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.
8 w2 c9 i0 q Etvb 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。6 {9 ^6 | C" Y
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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