Questions: Question 25 Consider the following chart. What is the marginal product of labor (MPL) of the fifth worker? Land (20 Acres) Labor (Workers) Total Product (Pounds) 20 acres 0 0 20 acres 1 50 20 acres 2 130 20 acres 3 220 20 acres 4 300 20 acres 5 370 20 acres 6 390 20 acres 7 380 Marginal Product of Labor (MPL) -10 20 80 90 80 70 50 0

The marginal product of labor (MPL) is calculated as the change in total product (output) when an additional unit of labor is employed, holding all other inputs constant.

To find the MPL of the fifth worker, we need to calculate the difference in total product when the number of workers increases from 4 to 5.

From the chart:

• Total product with 4 workers = 300 pounds
• Total product with 5 workers = 370 pounds

MPL of the fifth worker = Total product with 5 workers - Total product with 4 workers MPL of the fifth worker = 370 - 300 = 70

The answer is 70.

Explanation of options:

• -10: Incorrect. This would imply a decrease in total product, which is not the case here.
• 20: Incorrect. This is not the correct difference between the total products for 4 and 5 workers.
• 80: Incorrect. This is not the correct difference between the total products for 4 and 5 workers.
• 90: Incorrect. This is not the correct difference between the total products for 4 and 5 workers.
• 80: Incorrect. This is not the correct difference between the total products for 4 and 5 workers.
• 70: Correct. This is the correct difference between the total products for 4 and 5 workers.
• 50: Incorrect. This is not the correct difference between the total products for 4 and 5 workers.
• 0: Incorrect. This would imply no change in total product, which is not the case here.

In summary, the marginal product of labor for the fifth worker is 70.