原帖由 wwk6002 於 2007-5-5 22:53 發表。 
1 U V; k; v, ]: ?& N5 s& F1 u" `tvb now,tvbnow,bttvb請答197的人想清楚!
4 \3 J+ V3 @8 S: d( h5 `+ y3 O老闆用假的一百蚊(之後還返張真的一百蚊),換了真的一百蚊零錢,公仔箱論壇9 [/ K0 F. ^1 k( w4 k
即係話只係用左一百蚊,就換黎真的一百蚊零錢,然後比左其中79蚊比買野條友,佢自己仲有21蚊,
& C( J& j" T7 c# _3 ~# f! ?& h用左一百蚊,剩返21蚊,所以蝕了79蚊,還有貨品(成本1 ... tvb now,tvbnow,bttvb! `2 D8 N& q" Z
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Yes, your answer is correct, but is only the 1st part, u forgot he paid back another $100 to his neighbor, that is another $100, not related to the first $100, you really have to 想清楚 |