Answer:
Alternative depreciation system (ADS depreciation) per year:
Year % depreciation expense
1 8.32% $24,960
2 16.67% $50,010
3 16.67% $50,010
4 16.67% $50,010
5 16.67% $50,010
6 16.67% $50,010
7 8.33% $24,990
General depreciation system (GDS depreciation) or MACRS per year:
Year % depreciation expense
1 20% $60,000
2 32% $96,000
3 19.20% $57,600
4 11.52% $34,560
5 11.52% $34,560
6 5.76% $17,280