i count 44..what the answer?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。5 E8 S" _: O D0 a, X* ]/ m5 G
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yjc4258,what the answer?
21+50+15=86/ v! ?! K& C+ w( V1 b
why 86... 4 y4 R/ U9 B3 C% b) K6 v5.39.217.77:8898becos he change 50 "small money" then giv bck to customer 29 and he keep the balance 215.39.217.77:8898% l2 O: w& _( ?* a9 ]% F( ]
then he giv bck his fren 50 ) q/ A' W; M8 H( _) ?1 [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。and the shoes cost is 15公仔箱論壇9 v7 O! s8 R' y
7 m7 `$ y; o6 a1 I3 u c% R5.39.217.77:8898so total he loss is 86...& r6 W/ \- e1 h, ]: h n8 q