21+50+15=86公仔箱論壇! X6 s Y; ^7 k6 q; y
why 86...
' ^- z" S4 A8 ebecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
/ p+ c. T0 z; E6 R; v% Zthen he giv bck his fren 50公仔箱論壇+ b# S: ]9 n: I
and the shoes cost is 15公仔箱論壇- u- \0 q$ k) n' F2 a8 J4 R8 b
- W, R- u" h+ b6 I+ i( Z5.39.217.76so total he loss is 86...
* I- `% f- c; S! R9 D: h6 P5 ntvb now,tvbnow,bttvb
, U# p0 x$ S8 G1 Q2 Z[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |