At its current​ short-run level of​ production, a​ firm's average variable costs equal ​$20


per​ unit, and its average fixed costs equal ​$15

per unit. Its total costs at this production level equal ​$1 comma 400
.
Part 2
What is the​ firm's current output​ level?

1 answer

To determine the firm's current output level, we need to use the given information regarding average variable costs, average fixed costs, and total costs.

The formula for total cost is:
Total Cost = Total Fixed Cost + Total Variable Cost

In this case, the given total cost is $1,400 and the average fixed cost is $15 per unit. We can calculate the total fixed cost by multiplying the average fixed cost by the output level (x):
Total Fixed Cost = Average Fixed Cost x Output Level

So, Total Fixed Cost = $15x

Substituting this into the total cost formula, we get:
$1,400 = $15x + Total Variable Cost

Since the average variable cost is given as $20 per unit, the total variable cost can be calculated as:
Total Variable Cost = Average Variable Cost x Output Level

So, Total Variable Cost = $20x

Plugging this back into the total cost formula, we have:
$1,400 = $15x + $20x

Combining like terms, we get:
$1,400 = $35x

Now, we can solve for the output level (x) by dividing both sides of the equation by $35:
x = $1,400 / $35

x = 40

Therefore, the firm's current output level is 40 units.