The data average productivity for each number of worker for a firm are given in the table below

number of worker	average productivity	total product	marginal product
1	6
2	8
3	10
4	12
5	11
6	10

a) Complete the table by calculating the Total Product of Labour and Marginal Product of Labour

corresponding to each number of workers.

b) At which number workers does the Law of Diminishing Marginal Returns start working and

why?

c) Differentiate between economies of scale and return to scales?