21+50+15=86% o, ^( B3 {+ R+ t1 Q! p4 T5 G
why 86...
2 E7 F% o1 J- y1 a% ^& G1 gbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21tvb now,tvbnow,bttvb0 W0 }* C9 i1 A# U( |, H8 ]
then he giv bck his fren 50
3 ?; i: ?! ^8 r0 p6 u6 x6 ?' _- uTVBNOW 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。and the shoes cost is 15
0 `. d; e0 G0 w7 ?2 d w6 g5.39.217.77:8898
$ L# W9 I* u3 h8 |' i9 Ttvb now,tvbnow,bttvbso total he loss is 86...
. n5 L0 `8 f6 `" _tvb now,tvbnow,bttvb
9 G# Z" q3 f& H& t$ }[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |