21+50+15=86
c4 S# c4 c$ ^tvb now,tvbnow,bttvbwhy 86...tvb now,tvbnow,bttvb- [0 D$ S7 z" ~
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
$ m- I; ]9 q3 {, H9 O/ x# ytvb now,tvbnow,bttvbthen he giv bck his fren 50
6 K! B" j; O) G s公仔箱論壇and the shoes cost is 15
- ~8 Q/ p2 k% R0 ~3 U% [! B# R9 kTVBNOW 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。- r$ {3 Z) W6 c% P% y6 D
so total he loss is 86...tvb now,tvbnow,bttvb# A, j/ D; X m7 H4 K R8 ?3 M5 U
7 _" c9 |; m. C. z: Z5 v, i- S[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |