21+50+15=86
; c; H& ^% h& e& F3 E+ Z# L0 rtvb now,tvbnow,bttvbwhy 86...
8 X6 b, i! m5 a$ F# _tvb now,tvbnow,bttvbbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
0 n4 _3 {: P, r+ b, a& q/ J0 otvboxnow.comthen he giv bck his fren 50TVBNOW 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。3 a& {; b P, K' c# J- S% q/ x
and the shoes cost is 150 K6 u- i) l4 y
6 q/ R7 e5 |! {8 c: i3 S' f
so total he loss is 86...
( I- |! v3 Q" B1 M: z7 S4 e/ ]公仔箱論壇- _" x. M, r5 [; G1 T0 p" M1 t
[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |