21+50+15=86
0 o$ I, u; ?4 f$ y. P/ S+ H% |6 }3 ^why 86...
* f# h6 Z* _/ F3 E6 N Etvboxnow.combecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21& w0 W+ @& S2 H8 c: r' q, I
then he giv bck his fren 50
/ c* x% n7 t& G/ Gand the shoes cost is 15" w1 w6 a9 a" Z1 G* K# I; ]+ O
* m: ^* C5 A4 y$ ]$ l a5 j# 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。so total he loss is 86...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。, \" M' J2 M9 ?
: o3 |' n$ ~# l. e7 X) @) [- Wtvb now,tvbnow,bttvb[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |