原帖由 prozzy 於 2007-5-18 23:05 發表。  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。5 Q, V4 v: p# A$ r# F/ V4 [$ f
the answer is -$97 for sure. 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。1 |1 P* J; k7 @6 s# {; K) r
Think about it this way
% }1 W* X \$ y3 F1 Q" ^: N; f5.39.217.761) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)
: C: @/ E/ l$ S' d5 n! @4 o2) Now, the owner discovered that the 100 bucks is fake. You can th ...
9 c/ Q. ?# l% `; W+ ]( A tvb now,tvbnow,bttvb% Z2 `7 z6 `8 a
1) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrongtvb now,tvbnow,bttvb$ b" v; v2 b9 u4 R4 ?; V* R1 x
# O' q, V' l% Z* I$ X3 Z) K
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.
* U0 Y4 b1 h OTVBNOW 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 | @4 J6 G% F6 o2 `6 q
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
| 
發表於 2007-7-11 03:19 PM
| 
