21+50+15=86
- Y) U% P; q' |tvb now,tvbnow,bttvbwhy 86...5.39.217.76# t* g5 _8 `$ H' [ a
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21
0 E( v" L, M7 F. Ptvb now,tvbnow,bttvbthen he giv bck his fren 50
7 \9 l0 ?) l0 B$ \公仔箱論壇and the shoes cost is 15
) c9 c; w/ L; i7 Otvb now,tvbnow,bttvb; y( y$ k+ G5 C
so total he loss is 86...
9 ?- Z3 g" J. K5 \) e/ _
8 k6 ^: L; ~ T0 a1 ?( b/ @[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |