21+50+15=86公仔箱論壇7 c/ i8 I( k7 R
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。# ]! K4 F8 C; B! _ {+ B
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
! l* p4 {& K% i/ k4 V/ htvb now,tvbnow,bttvbthen he giv bck his fren 50
# z$ Y& m" F6 P- G9 l公仔箱論壇and the shoes cost is 15公仔箱論壇' S" [9 r" {- T$ E. N
+ o( R S( N: Y) y n
so total he loss is 86...公仔箱論壇' i- J2 J$ H& [ T) u
) W4 e" S4 [7 O4 \www3.tvboxnow.com[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |