Answer:
Average Cost is decreasing.
Explanation:
Marginal Cost is the cost of producing one unit of product.
So, here cost of adding one extra Labour unit is $100.
Extra Quantity produced = 10
So, Marginal Cost = $100/10 = $10
Total Variable Cost = $100 * 10 = $1000
Total Output = 25* 10 = 250 (See the next Part)
Average Variable Cost = Total Variable Cost/ Total Output = $4
Average Physical Product = 25
No. of Workers = 10
Total Output = 25 * 10 = 250 units
Total Variable cost = $1000 (from part (a))
Total Fixed Costs = $5000
So, Total Cost = $6000
Total Output = 250
So, Average Total Cost = $6000/$250 = $24
Till the point when MC< AC, the AC is decreasing.
Here in our situation, MC = $10 and AC = $24. So, MC < AC.
So, Average Cost is decreasing