If the average product of 20 workers is 100 bushels of wheat and the average product of 21 workers of wheat is 99 bushels of wheat, then the marginal product of the 21st worker was
A) -1 bushel of wheat.
B) 5 bushels of wheat.
C) 79 bushels of wheat.
D) 99 bushels of wheat.

Question

Quizplus · Accepted Answer

The average product of 20 workers is 100 bushels of wheat. Therefore, the total production of these 20 workers is 20 x 100 = 2000 bushels of wheat.

The average product of 21 workers is 99 bushels of wheat. Therefore, the total production of these 21 workers is 21 x 99 = 2079 bushels of wheat.

To find the marginal product of the 21st worker, we need to subtract the total production of the 20 workers from the total production of the 21 workers:

Marginal product of the 21st worker = Total production of 21 workers - Total production of 20 workers 
= 2079 - 2000 
= 79

Therefore, the marginal product of the 21st worker is 79 bushels of wheat.

If the Average Product of 20 Workers Is 100 Bushels