21+50+15=86
: _+ }, M1 ]; @& V7 Ctvb now,tvbnow,bttvbwhy 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。' g3 @1 l8 E7 |* s+ [
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
+ b0 N& ~5 ?* J/ Atvb now,tvbnow,bttvbthen he giv bck his fren 50
9 I8 }1 @0 v5 M1 ]and the shoes cost is 154 s' a8 p9 ~" U$ E
: M* t6 R r9 u7 t, {+ M8 TTVBNOW 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...
( u$ Q C( {* Z \1 g5 t公仔箱論壇* K1 n: @' Y8 r
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |