Answer: Annual rate of return = 21.89%
Explanation:
Given that,
Expected increase in annual revenues by = $140000
Expected increase in annual expenses by = $88,000 including depreciation
Cost of oil well = $465,000
salvage value at the end of its 10-year useful life = $10,000
Expected Income = Expected increase in annual revenues - Expected increase in annual expenses
= 140000 - 88000
=$52000
Average investment = [tex]\frac{465000+10000}{2}[/tex]
= $237500
Annual rate of return = [tex]\frac{Expected\ Annual\ Income}{Average\ Investment}[/tex]
= [tex]\frac{52000}{237500}[/tex]
= 21.89%