21+50+15=86
" v1 @8 R% v7 z3 a2 `2 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。why 86...公仔箱論壇$ \6 N0 O- C. p, g5 B& R9 f6 B
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 215.39.217.76- H! b% c5 e- ]
then he giv bck his fren 50& |7 M9 }! R9 R6 s
and the shoes cost is 15& |+ E7 K! v% a2 ~: o. |1 D
. l1 I* r) ^, _6 |/ ~( g$ q5.39.217.76so total he loss is 86...
0 k* r% o& a& e9 ~9 Ntvb now,tvbnow,bttvb
6 v4 N+ s5 u! O6 h8 n) c2 g[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |