21+50+15=86
8 W' m) j. _: | n, dwhy 86...
f' |6 O9 E/ V公仔箱論壇becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21; m! ^* ]1 R" b" E( K3 ?+ S) ?
then he giv bck his fren 50
6 G. d# K1 K- Z d, uwww3.tvboxnow.comand the shoes cost is 15
" W: w: s! \9 V6 E6 Q公仔箱論壇tvb now,tvbnow,bttvb# W- c3 L: v% c
so total he loss is 86...www3.tvboxnow.com4 U8 c, T& z/ \
; W/ W! T# p7 W( v[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |