Answer:
3,000 shirts
Explanation:
This concept is called Break-Even Analysis.
In order to know how many shirts are required to break even, we must first need to know the contribution margin per unit which is simply selling price less the cost of inventory.
Contribution Margin = Selling Price - Cost of inventory
$16 = $20 - $4
Then, simply divide the fixed costs by the calculated contribution margin to know the break even number of shirts.
$48,000 / $16 = 3,000 shirts