21+50+15=86
# P6 M& \; @2 k8 X" xtvb now,tvbnow,bttvbwhy 86...
* ]- f, n0 \1 \. I/ E- M4 Y! ^公仔箱論壇becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21tvb now,tvbnow,bttvb- _6 {% U) a+ \- _% A$ P6 O$ T9 I" W% a
then he giv bck his fren 50公仔箱論壇* A& W; D9 Y- H# }1 y" _
and the shoes cost is 15; x A1 ^! E5 S. Q. h4 H
/ u9 j! O. L, T; G- F3 h' j) b公仔箱論壇so total he loss is 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。& F" M% N3 {2 f% T
4 m0 c! Z8 f& s4 s9 e' k[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |