21+50+15=868 F! S. [. K/ i; {6 {# `+ U; M
why 86...
% w+ Z" _6 X6 F, k, Kwww3.tvboxnow.combecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
% Q+ N3 o A9 Uthen he giv bck his fren 50TVBNOW 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。3 a" i( Z+ D# B7 F
and the shoes cost is 15
9 j" Y' H+ Y& B/ f% lwww3.tvboxnow.com, @. I: E0 s r s' p) K$ G, U
so total he loss is 86...
E/ E( Q5 f0 F8 T% h1 N2 g4 {( n公仔箱論壇4 R( Y# R8 G2 W. |3 k0 H1 u
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |