21+50+15=86
: q& M# S# `3 w8 ^# N5 b$ M1 a- C5.39.217.76why 86.../ s( A: W/ f0 K
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21公仔箱論壇( K+ f4 R9 r9 a, j# d
then he giv bck his fren 50tvb now,tvbnow,bttvb7 x1 l/ f. C* M7 y r( Z
and the shoes cost is 15
& r8 m( m, w( c0 ]+ Ftvb now,tvbnow,bttvb. R0 X; \/ R" t0 ]8 F# X
so total he loss is 86...5.39.217.76" X* b4 v$ }) ?, |" T' W* {. Z
! A" N+ V1 b4 v6 c+ Y3 ?9 A+ Q9 U5 b( 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。[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |