21+50+15=86
$ C3 `' s4 w! _1 VTVBNOW 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。why 86...( F4 L3 x. O# v4 A9 f
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
6 c7 V: X# |' Otvb now,tvbnow,bttvbthen he giv bck his fren 50$ y; g- ~9 J1 W5 X: R/ K
and the shoes cost is 15
$ a! z5 J6 Z8 n% \. S5.39.217.76
+ b1 w8 D$ K2 q5 vTVBNOW 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。so total he loss is 86...* n7 H2 R7 {1 w) o6 ~& d' c
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。. }. E' _. ^% Z9 H" }8 @% p
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |