21+50+15=86* G) E |' W8 L& u& a% S! o
why 86...
6 R" f3 i' G; C; ATVBNOW 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。becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
& C6 P+ I" h" \! }# u5 ctvb now,tvbnow,bttvbthen he giv bck his fren 505.39.217.76: N; @% f+ H% b s, ~+ { i3 I8 u
and the shoes cost is 15* N9 n' [% e, T2 e# f% F
- n6 F4 f) [4 z3 e
so total he loss is 86...
: B0 g9 H. |1 t1 ]$ A% S: |tvb now,tvbnow,bttvb5.39.217.76: L8 ^ @6 n( l W6 |6 O/ l: D
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |