21+50+15=86os.tvboxnow.com v2 k W1 U( O& S
why 86...tvb now,tvbnow,bttvb8 i& T( C: e) j/ I' \& h
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21, l. X5 @ Q' \4 L) g6 W7 Y F5 _) E
then he giv bck his fren 50公仔箱論壇9 }2 P+ b: b( c% H/ F
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。4 \$ p2 G; w9 E0 U; x+ O7 O
tvb now,tvbnow,bttvb9 ~ z" q6 }0 ~) M( _7 m
so total he loss is 86...公仔箱論壇+ C4 W+ t$ I& S6 [7 w& l9 `2 x
9 N$ ]3 h9 H+ i$ {3 W1 j公仔箱論壇[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |