Answer:
5 workers
Step-by-step explanation:
The computation is shown below:
Workers Total Total Marginal Total Marginal
production revenue revenue($) cost cost($)
at $10 per unit at $600 per worker
1 100 1000 1000 600 600
2 190 1900 900 1200 600
3 270 2700 800 1800 600
4 340 3400 700 2400 600
5 400 4000 600 3000 600
6 450 4500 500 3600 600
7 490 4900 400 4200 600
8 520 5200 300 4800 600
As we can see at 5 workers the marginal revenue is equivalent to marginal cost so the same is to be considered