原帖由 wwk6002 於 2007-5-5 22:53 發表。 
" t9 ?- x+ Y, u% |" W$ O; r+ ?請答197的人想清楚!, ~2 ^& z1 q: `' P3 U7 A
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! C9 ? |/ Z* L1 ]
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,
- K* r5 |% }5 }9 i& c, g; \+ L5 ytvb 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 ... ; d9 D$ v8 C' N
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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 |