If 14 workers produce a total of 25 cabinets and 15 workers produce a total of 30 cabinets,then _____
A)the marginal product of the fifteenth worker is 2 cabinets.
B)the marginal product of the fifteenth worker is 5 cabinets.
C)the marginal product of the fifteenth worker is 30 cabinets.
D)the marginal product of the fifteenth worker is $5.
E)diminishing returns begins with the fifteenth worker.

Question

Quizplus · Accepted Answer

Marginal product is calculated by finding the additional output generated by adding one more unit of input (in this case, one more worker). We can calculate the marginal product of the 15th worker by finding the difference between the total output produced by 15 workers and the total output produced by 14 workers:

Marginal product of 15th worker = Total output of 15 workers - Total output of 14 workers 
= (30 cabinets) - (25 cabinets) 
= 5 cabinets

Therefore, the correct choice is B.

If 14 Workers Produce a Total of 25 Cabinets and 15