21+50+15=86tvb now,tvbnow,bttvb( |2 ^2 H6 `' Z& k- f. b- i5 K
why 86...
P1 G/ T3 T& i0 y& s# Q/ R+ [( o4 {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。becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
' R8 V" w+ f% ?* L8 }tvb now,tvbnow,bttvbthen he giv bck his fren 50
! m9 }$ @+ [* |2 h) B6 ]www3.tvboxnow.comand the shoes cost is 15
, A! }* c/ g' E" t公仔箱論壇; N' z) j, s: U7 s7 e
so total he loss is 86...
4 ]* n! W1 ], Z* v1 z$ h9 C! k3 ^0 e公仔箱論壇
# t; \: Y% ?3 f公仔箱論壇[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |