21+50+15=86
8 i5 `" L2 i# G3 T3 R3 S! t公仔箱論壇why 86...8 w, U/ I% l) z6 g
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 213 m! h) c4 W% R8 i, V' x
then he giv bck his fren 50
d$ P' o% d. Z6 S: U* M. stvb now,tvbnow,bttvband the shoes cost is 15
% N5 x" a2 Z# ytvb now,tvbnow,bttvb
$ A: d( o" [: H4 c2 MTVBNOW 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。so total he loss is 86...
7 ^9 w( d: z) l/ C4 Z* t5.39.217.76
2 U* }) G w. ^% m3 h. ^公仔箱論壇[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |