原帖由 prozzy 於 2007-5-18 23:05 發表。 
3 k3 N. p4 D: W" L: |/ q/ Y' V$ ~# d. nthe answer is -$97 for sure.
, ] @6 i8 k9 V" S1 ITVBNOW 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 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。. m, a( u3 l! Q- N5 ~
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)5.39.217.76' Z$ S8 ?. |* j1 S
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 0 r' F" v' k8 u8 p) E `+ L' g9 V6 t
tvb now,tvbnow,bttvb; _$ S( K- j8 t: _% c" t# ?, k
4 q2 z z* o; C, q4 z- T6 M5.39.217.761) very good, it the 100 bucks is real, your answer is correct, but it is fake, so your answer is wrong
. p) Y# r3 B+ @: `3 Y* p' q K* Stvb now,tvbnow,bttvb
9 A3 J2 z J: Ptvb now,tvbnow,bttvbthink about it, when the bill is fake, and he gave him $79 change back, that is -79 already, it means the 100 on his hand is equal to 0 (Zero), how did he makes profit when he got a fake bills, then he need to pay another real 100 dollars bill to his neighbor, that another -100, plus the product he lost, thats another 18 dollars, Do Not Even Mention the 3 dollars, there is no profit he can make when he got a fake bill.5.39.217.76$ d% U2 U. d8 s1 U& w' M
* C' j: P/ p H" L4 s$ _tvb now,tvbnow,bttvbI know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |