21+50+15=86
* \0 Y3 y0 U" H$ A9 [公仔箱論壇why 86...tvb now,tvbnow,bttvb; ?' a9 S7 e/ H6 d: s$ M
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
. E# |7 I+ w3 v( Tthen he giv bck his fren 50
8 B5 h/ d/ J5 K0 h9 G2 htvb now,tvbnow,bttvband the shoes cost is 15tvb now,tvbnow,bttvb3 C: A/ }' s& i) H- q
5 h& L; k5 \! @' Y; v
so total he loss is 86...5.39.217.76; `5 y7 c& w: ?6 v Q, K8 M: r- e; N
! g$ `5 ~4 I5 ~9 [( S) j; A& e
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |