**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*