21+50+15=86
- y" w8 j8 ]* n' r! rtvb now,tvbnow,bttvbwhy 86...: M2 e1 \/ B, j! j7 B4 G* C7 T) q
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
3 W0 J# \2 g$ a. ~" E' Zos.tvboxnow.comthen he giv bck his fren 50
% Z" t8 }) F! Z5 |: o6 ?9 rand the shoes cost is 15
j7 A+ x3 ^* _) X$ Rtvb now,tvbnow,bttvb8 }& N: F7 T$ d2 S% @
so total he loss is 86...
' T3 b" O& q5 \6 z+ t, Xtvb now,tvbnow,bttvb
) N$ b# m3 O5 Y3 l+ _tvb now,tvbnow,bttvb[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |