21+50+15=86
2 k V: @5 k6 O( `' I5.39.217.76why 86...tvb now,tvbnow,bttvb5 O9 Y8 }7 F# R! j
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21& S! @! P( Q y6 Q- v. F6 v
then he giv bck his fren 50tvb now,tvbnow,bttvb2 _+ O. U! t6 T) C) I$ N0 `- V
and the shoes cost is 15
! R: Q& Y; j1 b2 L' V9 g$ U$ |- Q% \
v" ]7 m% f; Z" ~' a0 I3 X4 d9 L+ ^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。so total he loss is 86...$ X6 F2 E& D& s) a1 C b
+ c# @8 Y: v6 F. K stvb now,tvbnow,bttvb[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |