Purchase a truck
Annual Cost = Annual interest on investment + Annual operation and maintenance cost + Annual depreciation using sinking fund method
$AC = (FC)i + OM + \dfrac{(FC - SV)i}{(1 + i)^n - 1}$
$AC = (800,000)(0.14) + 20,000 + \dfrac{(800,000 - 100,000)(0.14)}{(1 + 0.14)^5 - 1}$
$AC = \text{P}237,898.48$
Rent a truck
Let N = the required number of days per year
$\text{Cost of renting} = \text{Annual Cost}$
$1,189N = 237,898.48$
$N = 200 \text{ days}$ ← answer
