Final answer:
The indifference point is the point at which the cost of the contractual arrangement with the local carrier is equal to the cost of leasing the own refrigerated trucks. The indifference point is around 75 shipments.
Step-by-step explanation:
The indifference point is the point at which two options have the same cost. In this case, we need to find the point at which the cost of the contractual arrangement with the local carrier is equal to the cost of leasing the own refrigerated trucks. Let's set up an equation to solve for the indifference point:
Cost of contractual arrangement = Cost of leasing trucks
$4,500 + $250 * x = $20,000 + $45 * x
Simplifying the equation, we get:
$250 * x - $45 * x = $20,000 - $4,500
$205 * x = $15,500
x = $15,500 / $205
x ≈ 75.61
Therefore, the indifference point is around 75 shipments. At this point, both options will cost the same amount.