21+50+15=86tvb now,tvbnow,bttvb9 j+ }" `! B. b
why 86...公仔箱論壇+ B1 g. Z' C* S
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
1 ]3 m2 h( z7 a9 C$ ]* @# HTVBNOW 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。then he giv bck his fren 50tvb now,tvbnow,bttvb! u* ^+ p- M) S5 I6 q; {6 [$ }$ ]
and the shoes cost is 15公仔箱論壇% g% ?) R' G8 W4 x/ A
# u! q( l; [0 a) _4 S) M/ B$ y
so total he loss is 86...
* L3 P. [) S& H) h8 Q5.39.217.77
# x3 I' l/ O& B4 ?0 m, `公仔箱論壇[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |