Economics 的问题 Economist 高手进

题目

Economics 的问题 Economist 高手进
1 2 3 4 5 6
unit fixed variable total average marginal
output cost cost cost cost cost
cost
0 18 0 18 infinity -
1 18 15.2 33.2 33.2 15.2
2 18 28.4 46.4 23.2 13.2
3 18 40.0 58.0 19.3 11.6
4 18 50.4 68

答案