21+50+15=86
& m; [) ~: I( \; y8 o公仔箱論壇why 86...
?% ~6 G2 }( U+ m% ztvb now,tvbnow,bttvbbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 215.39.217.77. T& h6 ?9 z/ |. H3 i$ r, @3 \
then he giv bck his fren 50tvb now,tvbnow,bttvb8 K$ T* d- E- `' ?* S
and the shoes cost is 15公仔箱論壇 M; d% i' w* m8 f; U. g# R
; Y8 K8 D& \3 q5 r" ntvb now,tvbnow,bttvbso total he loss is 86...5.39.217.77 o( L3 K. w# z7 F/ \
tvb now,tvbnow,bttvb* r8 K! i. d1 a Q( [9 K! b
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |