Answer:
Annual equivalent cost of the investment = $30,603.43 per annum
Step-by-step explanation:
Equivalent Annual cost is the Present Value of the total cost over the investment period divided by the appropriate annuity factor.
Step 1
PV of cash flows
PV of first cost = 150,000
PV of annual maintenance cost of $17,500
= 17,500× (1-(1+0.08)^(-30))/0.08
= 197,011.21
PV of salvage value
$25,000 × (1+0.08)^(-30)
= 2,484.43
PV of net total cost
= 197,011.21 +150,000 - 2,484.43
= 344,526.78
Step 2
Determine the annuity factor for 30 years at 8%
(1-(1+0.08)^(-30))/0.08
=11.2577
Step 3
Equivalent annual cost
= 344,526.78 / 11.2577
=$30,603.43
Annual equivalent cost of the investment = $30,603.43 per annum