21+50+15=865.39.217.761 C; d% v. v @; e
why 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。/ k6 ^# U, {! A0 T- b
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
3 X2 |* m8 z" |) k" |. Dthen he giv bck his fren 50! _8 Y1 U {$ T8 ]
and the shoes cost is 152 Z4 Q) w: ?$ `
" H, f+ y+ u" d9 ^! S/ p公仔箱論壇so total he loss is 86...
+ y @9 P W4 P8 p: w7 K# q; L4 o& p
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |