21+50+15=86
% Q! B! ^* K Q* fwww2.tvboxnow.comwhy 86...
: |8 k2 \( o9 ]: |becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 217 @- K& [/ I C& O# `( b
then he giv bck his fren 50www2.tvboxnow.com- g# C+ j' i8 a# A
and the shoes cost is 15
7 `* o2 K5 F: T% C# N6 stvb now,tvbnow,bttvb
" J: Z+ `) g) U9 w公仔箱論壇so total he loss is 86...
7 T* Q; r! c$ j: v
+ M. [/ ]6 j7 _+ U* Ftvb now,tvbnow,bttvb[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |