原帖由 prozzy 於 2007-5-18 23:05 發表。 tvboxnow.com9 ?( I: y/ N- M M. Q1 v
the answer is -$97 for sure. + p0 S# C! ?4 g3 o/ V; y3 S' d4 Q8 a1 b
Think about it this way ' Y7 @8 T% R& K# `% [2 G6 r/ y% j5 c
1) if the 100 bucks is not a fake one, the store owner will gain $3 ($21-$18)公仔箱論壇* _" k1 _8 }3 J: a7 e4 [
2) Now, the owner discovered that the 100 bucks is fake. You can th ... 6 d- ]7 e: b% l; Stvb now,tvbnow,bttvb公仔箱論壇9 | h, c* r7 F# Q
公仔箱論壇9 G$ O- A5 k3 b+ K% \, v
1) 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。8 f4 Z. y7 P" B+ S. K" d) O( W9 H
! V m& l& E8 P4 Q( S8 fTVBNOW 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.tvboxnow.com, f; C. v3 [, p# q1 s( L" K
. I3 K" k. T9 JTVBNOW 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。I know the answer becoz it really happening to my friend in his store in real LIFE, it can not be wrong. |