21+50+15=86
. t& P0 r* G# E/ W( q9 ]' qtvb now,tvbnow,bttvbwhy 86...
% ~. X! e4 d8 [3 |tvb now,tvbnow,bttvbbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 211 a4 Q6 ^4 o( L
then he giv bck his fren 50: P7 h; C4 q1 C/ }# C: u$ o
and the shoes cost is 15
( w9 E* k8 W' i5.39.217.76
( n$ |! I1 ^ k+ m% D3 h- e+ Gso total he loss is 86...5.39.217.76+ z8 t# i" s( _
tvb now,tvbnow,bttvb: ]9 g; _+ b1 B: v( \8 ?
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |