21+50+15=86
4 `9 j% \4 k9 U$ V- ~( u2 \tvboxnow.comwhy 86...
) o3 M/ c! L- w, H: G1 lbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21TVBNOW 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。' y3 g" R ~' h3 m% a5 z( P- i
then he giv bck his fren 50tvboxnow.com0 M n% N2 r7 A1 F% O4 q
and the shoes cost is 15
% w {' K y' }# F6 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。: N" h! m8 V# ]/ ~2 p
so total he loss is 86...
$ e2 W) J; x0 gtvboxnow.comtvboxnow.com) t2 ?! _- g0 M* B
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |