21+50+15=86
4 a+ G- n$ l* X& `why 86...
* C; }5 \' w2 g* k5.39.217.76becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
, R+ N: U! [/ e2 X7 {8 T6 Z& A6 I+ }then he giv bck his fren 50
, |' Y2 O5 m( i3 H7 Mand the shoes cost is 15
8 [; x! T. x. H: x" ]- t9 D2 d' Q, ~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。5.39.217.76. G8 ^" k' W/ J& D0 S. T) B
so total he loss is 86...8 k; ^8 Z/ [" U" b4 e) E1 Q
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。) w- L9 `9 [9 w
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |