21+50+15=86
' }) L0 H* r' u$ R5.39.217.77why 86...
. ^2 [% } h2 Ztvb now,tvbnow,bttvbbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
- p! }0 p: u6 P8 l9 g5 p' othen he giv bck his fren 50( B8 d# ]( C% ^1 [5 A* M
and the shoes cost is 15
. M& M1 v2 p* i/ g$ [3 \1 H5.39.217.77tvb now,tvbnow,bttvb# F, g6 I3 k0 L* j5 B* g
so total he loss is 86...5.39.217.779 g/ r7 N8 `3 |9 V0 g6 U9 b. ?
6 Z" P/ u0 c$ c% v
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |