21+50+15=86
R/ v* b& {9 C& t% h8 Atvb now,tvbnow,bttvbwhy 86...
* [) V: k$ N' H& S! Ebecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
3 `6 E0 A# `- atvb now,tvbnow,bttvbthen he giv bck his fren 50
7 Y! k- q% f0 b0 n+ _and the shoes cost is 15TVBNOW 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。" X+ ]% S2 |. h, ?9 X
2 R+ @" ]0 O6 Y9 _so total he loss is 86...
1 j" \! l- [. [0 m$ Z: r) ^( ]os.tvboxnow.com
2 W v0 S" [+ R( \6 u0 O9 c[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |