21+50+15=86
3 P1 `- K9 C* b, J' hwhy 86...5.39.217.76, {. K3 ?* W8 m# |
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21公仔箱論壇' Z/ M: j% T+ d ]1 R, ^
then he giv bck his fren 50
( ^! W& I+ B8 r; Z6 X) [7 ~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。and the shoes cost is 15
0 d/ e: p# c8 btvb now,tvbnow,bttvbtvb now,tvbnow,bttvb0 ?( I; |. A0 K+ }
so total he loss is 86...5.39.217.761 L! F/ D, C7 P5 t* v) m' R
公仔箱論壇$ X; P3 U2 u L5 c" _$ C0 A
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |