Final answer:
The marginal product of the third painter is the additional area they are able to paint. It is calculated by subtracting the area covered by two painters from the area covered by three painters, which results in 75 square feet.
Step-by-step explanation:
The question involves calculating the marginal product of the third painter. Marginal product is the additional output resulting from adding one more unit of a production factor, in this case, a painter.
When two painters paint, they can cover 200 square feet. When a third painter is added, they can cover 275 square feet. Therefore, the marginal product of the third painter is the additional area covered due to the third painter's efforts.
The calculation is as follows:
- Area covered by three painters: 275 square feet
- Area covered by two painters: 200 square feet
- Marginal product of the third painter: 275 - 200 = 75 square feet