21+50+15=86
) j3 N! B4 E* o1 [why 86...
0 u L, @' n5 P4 N7 Y公仔箱論壇becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 217 K1 V+ `$ t9 Z0 T1 ^5 J% X8 a$ Z
then he giv bck his fren 50; j$ r5 `% _, T* a' S P
and the shoes cost is 15tvb now,tvbnow,bttvb$ K: C& }8 \' z6 o b: C* Y* [
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: m+ C4 `7 V
so total he loss is 86...
r) z. y6 }1 Y2 z/ V% oos.tvboxnow.com$ [: u8 C9 W/ h6 u- q% ~
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |