21+50+15=86tvb now,tvbnow,bttvb0 [; I+ P2 H' J G6 I1 N$ R
why 86...
, e- x3 m0 f1 Y# Y; z( I9 f0 Nbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21 ~% g# l" c/ o4 a
then he giv bck his fren 50
4 K' F* w4 c- P2 b1 o公仔箱論壇and the shoes cost is 15tvb now,tvbnow,bttvb9 Z. [2 i3 ] ^% e
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。% i9 ~1 @' q% }$ S9 g
so total he loss is 86...
$ ^0 X6 W$ ~1 O" ]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。" l7 _" N, O" N
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |