21+50+15=86公仔箱論壇5 M; v; p# x4 _# x+ Q3 M7 [* ^ @
why 86...8 L) `& p+ F/ y% ]3 ^" N* J
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21TVBNOW 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。! y* \6 C; n! s% ^5 W
then he giv bck his fren 50os.tvboxnow.com+ ]0 }7 m F6 y! C6 H
and the shoes cost is 15TVBNOW 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。, _" f# G/ q( C# t e) P$ l- ]
, S& ]' t; o5 d+ k
so total he loss is 86...
+ a2 {; R" L- K. ]/ @" Bos.tvboxnow.com
: |: i- ?1 S& W% Z公仔箱論壇[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |