21+50+15=86
4 R7 ?- S% c0 w8 M2 `4 c公仔箱論壇why 86...5.39.217.77& c+ j# L. K6 g- a% M+ X
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21% z( F K3 Q! e! p/ C" ]. D
then he giv bck his fren 50
- b, p% ^/ p V4 [) @TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。and the shoes cost is 15
' |0 F: H( U; ]: _/ r& x9 mtvb now,tvbnow,bttvb
( ~+ Y8 I$ ~; E6 b5 _' l/ b; ? D V# ]公仔箱論壇so total he loss is 86...
3 O1 `: F; i7 H2 l5.39.217.77
: H! _' T5 ?( d' ^: d) {+ W[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |