The table below shows how the total weekly output of a clothing workshop changes as the number of employees changes.
| Total weekly output of T-shirts (units) | Number of employees |
|---|---|
| 800 | 20 |
| 1400 | 40 |
| 1800 | 60 |
| 2800 | 80 |
| 4000 | 100 |
Referring to the data in the table, what happens to labour productivity as the number of employees increases from 20 to 100? Labour productivity
remains constant.
rises over the whole range.
rises at first and then falls.
falls at first and then rises.
