21+50+15=865.39.217.76- p3 u2 F L% y7 B' D
why 86...tvb now,tvbnow,bttvb6 k+ _. D0 |$ H3 a O
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
- e6 y) e' Y: _5 Y5.39.217.76then he giv bck his fren 50tvb now,tvbnow,bttvb) ~/ M0 i7 ]2 J1 f9 c
and the shoes cost is 15% e# F8 c) S) i, Z6 W
' u4 ?8 V6 u: _( T$ B: [so total he loss is 86...6 S2 r! b7 B' p, d+ @
3 L; {5 j3 s' W- S7 z- k, k9 ]
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |