原帖由 wwk6002 於 2007-5-5 22:53 發表。 
3 w4 x' H* v. Z6 e2 X6 B公仔箱論壇請答197的人想清楚!
" z: r) e5 Q; e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,$ D Y% F' |* n8 V" B
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,
8 S+ m. f2 m9 S+ O% k6 qtvb now,tvbnow,bttvb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+ O! q" n7 l6 k8 c5 z3 j; r
: j7 v" b' e2 Z0 J: b3 B; v 公仔箱論壇6 A2 m) V- ]8 Q/ f
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 |