21+50+15=862 A5 h2 x Z, Y7 t1 o- T2 g3 Y
why 86...
$ Q: ~) L' E, Dbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
0 P) H+ y; O! Itvb now,tvbnow,bttvbthen he giv bck his fren 50
v$ `) Z3 u/ O# Vand the shoes cost is 15
; X1 i0 }) ^' y3 W9 _9 |tvb now,tvbnow,bttvbTVBNOW 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。0 H4 B# k5 _6 L4 N: I$ g1 Z
so total he loss is 86...
; U: H* L7 t; b$ ^ Z; K) S, k6 q4 J$ N `) v& c
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |