21+50+15=86/ ]! C9 g' ~ @9 v
why 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。7 F6 c' c& O* b+ Q# a" p/ l& s
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 215.39.217.77" b- E3 v0 B3 a! o! |7 A7 Z
then he giv bck his fren 50
8 f; _6 S7 i4 t9 [9 ^ r8 ^8 r XTVBNOW 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。and the shoes cost is 15
2 X2 R2 z& N8 ]8 g9 |tvb now,tvbnow,bttvb5 I) j& @- T9 ~, j
so total he loss is 86...
/ ]. x f! I+ C5 }3 `tvb now,tvbnow,bttvb公仔箱論壇0 P1 D& [9 Q( E9 j0 Z1 y
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |