21+50+15=86
( }9 J) t; R- C# B5.39.217.77:8898why 86...公仔箱論壇" h9 O9 Q, I2 Y2 }! k
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
) l8 L" C4 ~( G+ L4 E+ l7 w& y- @公仔箱論壇then he giv bck his fren 50公仔箱論壇% A% k* i) z' n8 i" V$ m
and the shoes cost is 155.39.217.77:8898! b7 i m, p, O3 v
0 `, \$ Q# K" ~7 A v6 v
so total he loss is 86...* S! I5 E/ y! ~* n5 L: ` R( \
tvb now,tvbnow,bttvb8 _; V! W2 w& T' X* }5 a2 U
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |