A new machine costs $200,000 and has a useful life of 5 years, with a salvage value of $30,000. It will cost $5,000 to dismantle and remove the machine at the end of its useful life. Use straight line depreciation to determine book value of asset at end of year 3.

The book value at the end of year 3 is $100,000

Explanation:

Yearly Depreciation = (cost+cost of dismantling-salvage value) / useful life

cost is $200,000

cost of dismantling is $5000

salvage value is $30000

useful life is 5 years

Yearly depreciation = (200000+5000-30000) / 5

Yearly depreciation=$35000

Depreciation for three years=$35000*3

=$105000

Book value at the end of year 3=total cost of machine-three years' depreciation

Book value at end of year 3=$200000+$5000-$105000

Book value at the end of year 3=$100,000