21+50+15=86tvb now,tvbnow,bttvb/ j( ^+ h" t$ b5 U
why 86...tvb now,tvbnow,bttvb8 n4 I9 G, Z$ M" z, L; _- i( K2 O
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21公仔箱論壇4 `' p& m; y9 F, ~4 f
then he giv bck his fren 50
( r4 X* Z1 N) }公仔箱論壇and the shoes cost is 15tvb now,tvbnow,bttvb) y3 q- Z( [( V5 F. G
1 b( a! c4 l/ \( awww3.tvboxnow.comso total he loss is 86...
" s! E- z9 x8 O2 d$ t8 ~3 O
' ^; A, u M7 m/ J) E公仔箱論壇[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |