原帖由 wwk6002 於 2007-5-5 22:53 發表。 
, G& g7 T8 P/ v Z. O$ c+ O請答197的人想清楚!/ s* w2 u7 b2 L$ 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: f$ z" i7 l C% W% M, Z6 G' l+ Q
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,; j: E R! s# H0 Y6 M1 b9 F
用左一百蚊,剩返21蚊,所以蝕了79蚊,還有貨品(成本1 ... I) |( \* y. h$ m7 j6 etvb now,tvbnow,bttvb公仔箱論壇0 }# H2 F4 |0 ?$ R
公仔箱論壇* B% c- M0 r y
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 |