21+50+15=86
4 Z7 C7 P- I; j% k% P公仔箱論壇why 86...
0 J6 Q: v7 G* n; e公仔箱論壇becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
. _5 c0 Q7 \1 F; i2 O. U- othen he giv bck his fren 50tvboxnow.com8 R0 y% K2 b, p* p
and the shoes cost is 15tvboxnow.com" i+ g+ N0 S( u
tvboxnow.com3 t- V1 V6 Z, b: h6 P5 x
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。0 ^2 ~& X2 ^7 P0 n P* l3 y
3 Q; A, Q, } ?6 ?
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |