21+50+15=86
; t2 M- ]" R) k6 A) j1 R) Z5 R6 p" h5.39.217.76why 86...公仔箱論壇7 E. p7 M/ V- U z
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21公仔箱論壇( v! W5 i" U0 y ?5 w1 l1 I
then he giv bck his fren 50* n9 L' U0 C0 @! c! X
and the shoes cost is 15TVBNOW 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。; E. `7 m$ ]* f3 O
, a4 q, P; N3 d! n0 {
so total he loss is 86...tvb now,tvbnow,bttvb- o6 K: t( E M+ p9 m
" J! p# m# Q. s S8 f1 y0 L! Mtvb now,tvbnow,bttvb[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |