Number of Workers Output

0 0

3 90

6 198

9 540

12 810

15 1062

18 1197

21 1260

24 1305

27 1278

30 1269

The table above shows the weekly relationship between output and number of workers for a factory with a fixed size of plant.

a. Calculate the marginal product of labor.

b. At what point does diminishing returns set in?

c. Calculate the average product of labor.

d. Find the three stages of production.