21+50+15=86
4 F7 [7 Z$ `, {$ i* w1 Y5.39.217.76why 86...3 g! \, h; G' f, x% g
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
$ ~+ H8 A1 O# Q5.39.217.76then he giv bck his fren 50
( Q# O% N: N& C, c( {$ Q0 `: ^. ytvb now,tvbnow,bttvband the shoes cost is 15公仔箱論壇) j) X4 Q* j1 `1 [& f6 Y1 M3 u0 I4 ?
tvb now,tvbnow,bttvb# _8 u- V; i z6 t {* f
so total he loss is 86...
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[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |