Answer:
$4.6
Explanation:
The computation of the marginal cost of third-pound is shown below:-
Total cost of 2 pounds = Average total cost Output
= 2 × $4
= $8
Total cost of pounds = Average total cost × Output
= 3 × $4.2
= $12.6
So,
Total cost of third pound = Total cost of pounds - Total cost of 2 pounds
= $12.6 - $8
= $4.6
Therefore, for computing the total cost of third pound we simply deduct total cost of 2 pounds from total cost of pounds.
