Answer:
A. 4.74%
B.19.8 years
C.$639,900
Explanation:
Nature Power Company
Cost
Equipment $4,500,000
Steam pipes $3,000,000
Furnace $6,000,000
Total $13,500,000
Cost - Residual = Depreciable base
Residual Depreciable base
$500,000 $4,000,000
$300,000 $2,700,000
$0 $6,000,000
Depreciable base total $12,700,000
Depreciable base ÷ life (years) = Straight line depreciation
Life ( years) Straight line depreciation
Turbines 25 $160,000
Steam pipes 15 $180,000
Furnace 20 $300,000
Total $ 640,000
1. Composite depreciation rate
$640,000 ÷ $13,500,000 = 4.74%
2. Average service life
$12,700,000 ÷$640,000 = 19.8 years
3. Depreciation
0.0474 x $13,500,000
= $639,900