21+50+15=86
5 @ ^1 `' u1 M公仔箱論壇why 86...* ?$ _* R V, H" j0 K
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
6 \ L/ r2 b' }- v) Othen he giv bck his fren 505.39.217.77% P8 R9 b" N6 L$ [/ M) p. f
and the shoes cost is 154 U, i) @! j5 J0 s
3 G, i. T" p3 z& E5.39.217.77so total he loss is 86...
& ]: p3 [: N4 E F/ H公仔箱論壇
0 {8 E/ g* O+ |4 K) J[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |