Answer:
The depreciation for the first year is $75,000
Step-by-step explanation:
In working hours method the depreciation on a fixed asset is charged using the ratio of numbers of hours utilized by the asset in a period and lifetime working capacity in hours.
First, we need to calculate the Depreciable value
Depreciable value = Cost of Asset - Salvage value = $315,000 - $15,000 = $300,000
Depreciation = Depreciable value x Numbers of hours worked / Total working capacity of Asset = $300,000 x 25,000 / 100,000 = $75,000