21+50+15=86
" ]0 N( E. z% m2 g0 D8 N: Otvb now,tvbnow,bttvbwhy 86...! M! X% {* w7 R F
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
1 [3 F7 J$ m6 z: W& stvb now,tvbnow,bttvbthen he giv bck his fren 50
4 \2 C' g8 Q5 n* v2 a6 D2 Fand the shoes cost is 15
6 [% r3 y; a, p公仔箱論壇
2 s+ Z; h# q' m6 b7 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...
4 {" w+ n% h5 x( @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。tvb now,tvbnow,bttvb( c8 j$ M; G- x& K
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |