21+50+15=86
/ W% D0 o6 u) y2 t, H \os.tvboxnow.comwhy 86...
7 b/ F. a2 }' T2 ]) Ktvb now,tvbnow,bttvbbecos 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。# R+ t: v' X+ m: ?( F) C
then he giv bck his fren 50
5 X6 l, `4 N5 j9 h# {9 p! @公仔箱論壇and the shoes cost is 15公仔箱論壇' {! U0 {& f# ~) h$ G
) x; v/ q- ?# Gso total he loss is 86...
8 K0 R. M# m/ T) |$ [ p$ C, s2 Y
6 e" I' c, e0 w: L/ p: s& b公仔箱論壇[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |