21+50+15=86
( R* E7 d% P5 I' b. q2 j) B) \ d5.39.217.77:8898why 86...tvb now,tvbnow,bttvb% R$ j7 ^3 b, H* T
becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 21tvb now,tvbnow,bttvb" X8 v4 t' `1 V
then he giv bck his fren 50
4 @2 T7 R- V2 n公仔箱論壇and the shoes cost is 15tvb now,tvbnow,bttvb& {, j& k6 ?& z H$ J! K
8 _( a: G) N: u$ w1 w* [# @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。so total he loss is 86...
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- I. [" t$ m8 i- q[ 本帖最後由 ooichse 於 2008-12-3 01:54 AM 編輯 ] |