Current Attempt in Progress A plant asset was purchased on January 1 for $54000 with an estimated salvage value of $10000 at the end of its useful life. The current year's Depreciation Expense is $5000 calculated on the straight-line basis and the balance of the Accumulated Depreciation. account at the end of the year is $20000. The remaining useful life of the plant asset is 8.8 years. 5.8 years. 10.8 years. 4.8 years