21+50+15=86
/ s+ u' z7 v" t8 M2 |公仔箱論壇why 86...
: H3 x% n2 _& r- L0 ebecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21& I4 ]$ U( G7 ~ N7 t
then he giv bck his fren 50
% V4 F" t8 y0 T( u/ N5 K* J4 n5.39.217.77:8898and the shoes cost is 15公仔箱論壇. f: i% r; t$ T X
/ A7 ^9 D( Q5 g- Ptvb now,tvbnow,bttvbso total he loss is 86...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。5 F" }! y4 Z8 Z7 |/ G
. [7 q4 A+ f/ _6 t" W4 j
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |