21+50+15=86
" A+ i' C/ ]# Fwhy 86...
% E/ O+ u( a4 ~0 X7 k! A5.39.217.77:8898becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
" H& @" O2 K- Q# F' t$ Btvb now,tvbnow,bttvbthen he giv bck his fren 508 k: p% M- c/ a7 q
and the shoes cost is 15
3 i# \2 u. i# C- ]tvb now,tvbnow,bttvb
* f3 i4 @$ [# r5.39.217.77:8898so total he loss is 86...
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9 M2 U% k. P n0 z& z5.39.217.77:8898[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |