21+50+15=86
! c( W7 ~! `4 m' K5 ?3 ], f& i, mtvb now,tvbnow,bttvbwhy 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。0 {& v& B4 o' [ \0 i
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
V5 l% q5 B6 Z! ]* q0 d$ d! qthen he giv bck his fren 50
/ v' D* @1 T0 ~tvb now,tvbnow,bttvband the shoes cost is 15公仔箱論壇& W" s8 ?8 v: o& S; x" ~ z
2 z1 m( M* F( K5 z' G9 c" I5.39.217.76so total he loss is 86...5.39.217.76; {4 a, q- t& W! e4 f
- c& g! V1 g& h- D$ I' Y7 N
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |