21+50+15=861 ]# @7 c7 d% i9 D2 r" }1 V" R! N4 s
why 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。$ b0 I8 c9 n) `+ _
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
z/ X: S6 s! e$ ^, b5.39.217.77then he giv bck his fren 50tvb now,tvbnow,bttvb6 K& D- ^; L# i W6 ~1 Y* s! N
and the shoes cost is 15
, C/ [- ?8 B) j s# X( P2 |2 z1 J- W/ @
so total he loss is 86...
0 g( b* M+ }1 z: t+ Z5.39.217.77
' E, c5 O5 E! k5 d F[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |