21+50+15=86
$ x' z7 } O+ M! X, I6 v5 c$ O$ K$ `www3.tvboxnow.comwhy 86...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。' Y: M% [4 c6 X" J3 @
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21tvb now,tvbnow,bttvb- ?% \5 ~$ x" k' A$ m/ G; d' e4 g& Y
then he giv bck his fren 50tvb now,tvbnow,bttvb6 ^! I; r2 _9 N' ~1 C% R5 L
and the shoes cost is 15公仔箱論壇$ z7 L' j0 X# a
% \. A0 k# Z, X: \公仔箱論壇so total he loss is 86...www3.tvboxnow.com0 F3 o4 A% m' L5 J( U# F [; O1 M
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[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |