21+50+15=86公仔箱論壇- V! l, O) n+ h# z7 i
why 86...5.39.217.77:8898* `3 S& x+ c" P7 U
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21* A$ Y3 P/ @- O" k7 I. M. [
then he giv bck his fren 505.39.217.77:8898" [ y3 j5 S2 ^: {, @
and the shoes cost is 15
' s% N( r! V2 u* g/ u( a$ [5 a; F% l; P
so total he loss is 86...5.39.217.77:8898* S( M' Z! H) M% B: Z2 ]
y0 }( t9 n2 ~: ]" N4 D3 r[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |