21+50+15=86+ ?: I d/ V( v$ U; B$ z
why 86...+ M9 T$ f+ B. H" N) p! H
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21公仔箱論壇( `3 Q: c% W Y! M4 v1 S
then he giv bck his fren 50% U$ c) P3 @! _! `0 {
and the shoes cost is 154 [# m6 Z( ]: S5 ]5 [
+ I8 b9 o+ N @! Z0 L. jtvb now,tvbnow,bttvbso total he loss is 86...
! w& H1 S' U! {9 \& F6 ]; G; y0 jTVBNOW 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。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。7 i# \. t5 s4 e1 D- f& L
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |