21+50+15=86tvb now,tvbnow,bttvb# A% [% c5 W% S
why 86...
! j! Y0 t! l7 Z0 W1 itvb now,tvbnow,bttvbbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
& Q. O; r+ \$ t( T1 |) Mthen he giv bck his fren 509 r! p6 f F& C$ B: @0 L
and the shoes cost is 15www2.tvboxnow.com. f: d5 ?3 H& Q( v: ?5 E7 l" C
' z& u! S9 s. Y. S
so total he loss is 86...tvb now,tvbnow,bttvb1 t1 ^. m& `- R3 y( n+ V1 a
公仔箱論壇7 ~0 e$ O; _# n+ g w8 f
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |