21+50+15=86
5 o4 ~3 N2 `# j) Zwhy 86...
/ ~* o( k& t9 y( q5.39.217.76becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
* ] Y4 I' D; o5 \tvb now,tvbnow,bttvbthen he giv bck his fren 50
7 i1 W7 P2 g- I: Q7 j公仔箱論壇and the shoes cost is 155.39.217.76. q3 D" S/ g6 t9 _7 G7 u* T
5.39.217.76 ~ ~1 ~8 {5 c3 U; f0 f/ v: t' W! Y
so total he loss is 86...
7 f& I0 e0 o3 D T& |! Xtvb now,tvbnow,bttvb5.39.217.76$ Q/ }9 B& k6 K6 r: [
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |