21+50+15=86
7 g2 x, n4 b- q; z. rtvb now,tvbnow,bttvbwhy 86...
5 P) F+ H [" L2 q5 `becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21( M7 O3 t7 u {5 Y7 O0 F
then he giv bck his fren 50公仔箱論壇$ f+ A$ i! A4 n. S5 l) d
and the shoes cost is 155.39.217.76) ^+ Q! r# ~9 `% h7 `$ Z$ x" H
$ o7 g2 `9 Y! {公仔箱論壇so total he loss is 86...tvb now,tvbnow,bttvb6 P- p: |1 }: ^$ |
5.39.217.76$ W! l+ z& K7 c! j
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |