21+50+15=86公仔箱論壇0 h5 H4 i5 j$ T& j& L- p7 m- u
why 86...5.39.217.77( k$ ^" _1 F& B6 _
becos 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。+ ~. J1 `: c! W$ z- e
then he giv bck his fren 50, R+ |$ \. q5 p8 c
and the shoes cost is 15
}+ i. e! T+ z! P% g8 s5.39.217.77
0 }' _/ R2 \: S! T7 dtvb now,tvbnow,bttvbso total he loss is 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。, Q- ]" y* D( I7 q* _
" m3 j B7 C7 x+ P7 x; g" [[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |