21+50+15=86
3 s' K/ I* ?+ a* z' Z3 `: i$ N* ~why 86...
4 y2 n! l; C: Etvb now,tvbnow,bttvbbecos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21: V- @+ t- i- l
then he giv bck his fren 50tvb now,tvbnow,bttvb- _9 e1 ^# P/ X9 S# l
and the shoes cost is 15
7 h, r8 t7 z1 `5.39.217.77& e' p$ V+ l6 I' B" |* P4 D
so total he loss is 86...TVBNOW 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。) d8 G8 j; ?- d# ^ ~
$ j3 h" T' r1 W0 b1 g8 t* x[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |