Answer: 7 cent
Step-by-step explanation:
The term marginal cost refers to the additional cost incurred by producing one more unit of a good or service. Therefore, marginal cost is the change in the total cost of an item when the output increases by a unit.
In the scenario above,
Cost of printing 5000 postcards = $4,800
Cost to print 15000 post cards = $5,500
Tha marginal cost per postcard for the additional 10,000 postcards will be :
Change in total cost :
$5,500 - $4,800 = $700
Change in quantity :
15,000 - 5,000 = 10,000
Marginal cost per unit :
$700 / 10,000 = $0.07
$0.07 = 7 cent
Marginal cost per unit = 7 cent