21+50+15=862 V! h9 z2 a7 ?
why 86...公仔箱論壇, R* d7 \* T: K/ s
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
# S& S- i0 ]. @ B, S, n8 `: m7 [5.39.217.76then he giv bck his fren 50* {& h2 D' d6 m
and the shoes cost is 15
; h+ u5 L) i: V% B: C. U, rTVBNOW 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。( S, [! U; F, p6 Z3 Z# P" `
so total he loss is 86...
2 O! \& A7 R# d8 e1 k# j8 l+ Xtvb now,tvbnow,bttvb
& O/ l% ~# u0 l6 a" G[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |