Locotek produces toy trains and pays each worker $350 per week. Five workers can produce 40 trains per week and six workers can produce 45 trains per week. The marginal product per week of the sixth worker is

Question

BlackTom AI · Accepted Answer

Let's break down the information given and compute the marginal product carefully.
- We know: with 5 workers, output is 40 trains per week. With 6 workers, output is 45 trains per week. The change in labor is +1 worker, and the change in output is +5 trains.
- The marginal product of the sixth worker is the additional trains produced by adding that worker, i.e., ΔQ/ΔL = 5 trains / 1 worker = 5 trains per week.
Now assess each option:
- 42.5 trains: This value resembles an average or a hypothetical total, but marginal product is about the additional output from the last worker, not an average across all workers. Therefore this is not correct.
- $70: The figure in dollars would relate to wages or value of output, not to the marginal product in trains. Since the question asks for marginal product in trains, this monetary amount is irrelevant.
- 7.5 trains: This is the output per worker when six workers are employed if you divide total output by workers (45/6 = 7.5). However, marginal product specifically measures the extra output from the 小one extra worker, not the average per worker. Hence this is incorrect as the marginal product.
- $350: This is the weekly wage per worker, not a measure of output. Marginal product concerns units of output, not earnings.
- 5 trains: This matches the calculated marginal product: the additional trains produced by the sixth worker. It directly reflects the definition of marginal product in this context.
In summary, the only option that aligns with the marginal product concept given the before-and-after outputs is the 5 trains choice.

Locotek produces toy trains and pays each worker $350 per week. Five workers can produce 40 trains per week and six workers can produce 45 trains per week. The marginal product per week of the sixth worker is单项选择题

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