21+50+15=86
6 m, p5 A+ q/ B! i$ |" n3 _! }www.tvboxnow.comwhy 86...公仔箱論壇# K/ S$ h# Q8 P) V
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
9 `" l2 E, N# H: @* f9 Otvb now,tvbnow,bttvbthen he giv bck his fren 50; A! f. v8 A* u0 a
and the shoes cost is 15, z2 _7 p M% n M1 h9 l
tvb now,tvbnow,bttvb9 ?6 w8 ]" |- N+ E! ?" o, W9 s
so total he loss is 86...www.tvboxnow.com! ~1 R# d' J8 m
tvb now,tvbnow,bttvb# w; I4 p2 C) p5 w! c0 D
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |