Answer:
14%
Explanation:
Depreciation = Cost - Residual value / Useful life
Depreciation = ($250,000 - 0)/4
Depreciation = $62,500
Annual net earnings = Revenue - Cost - Depreciation
Annual net earnings = $200,000 - $120,000 - $62,500
Annual net earnings = $17,500
Annual rate of return = Annual net earnings / Average investment
Annual rate of return = $17,500/ [($250,000 + $0) /2]
Annual rate of return = $17,500 / $125,000
Annual rate of return = 0.14
Annual rate of return = 14%