Marginal cost is the cost of increasing the quantity produced (or purchased) by one unit. If the fixed cost for n products is $10,000 and the marginal cost is $200, and the total cost is $40,000, what is the value of n?
Choose the correct answer:
A) 30
B) 50
C) 60
D) 80
E) 150
Total cost for n products = fixed cost for n products + n*marginal cost --&gt; $40,000 = $10,000 + n * $200 --&gt; n = 150.   Answer: 150.
<result>E</result>
Marginal cost is the cost of increasing the quantity produced (or purchased) by one unit. If the fixed cost for n products is $10,000 and the marginal cost is $200, and the total cost is $40,000, what is the value of n?