The marginal benefit of hiring the third worker is 2 flashlights per hour.
The marginal benefit of hiring the third worker can be calculated by determining the additional output (flashlights) produced when the third worker is hired compared to the scenario with only two workers.
Let's break down the production levels:
- 1 worker: 10 flashlights/hour
- 2 workers: 16 flashlights/hour
- 3 workers: 18 flashlights/hour
The marginal benefit of hiring the third worker is the difference in production between having two workers and having three workers:
Therefore, the marginal benefit of hiring the third worker is 2 flashlights per hour.