ooichse

21+50+15=86: Z7 a/ o! l! v' Q
why 86...
* J3 N! p% O, [# Dbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
( h; e6 n3 @* w4 W, ethen he giv bck his fren 50; X) x7 k! f' a( c6 J( {+ t, l
and the shoes cost is 15os.tvboxnow.com) L0 [3 n4 r) f
os.tvboxnow.com' }+ k) @! y( g" f. @
so total he loss is 86...
# W$ d) G, A# y4 K
- V0 j/ {7 r- t8 U% R' e公仔箱論壇[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ]