Question-4 (23 pts, 7+7+9) A car has a first cost of 200.000 $ and a salvage value of 80.000 b after 6 years. a) What is the annual depreciation charge in year 5 (Ds=?) and book value after 3 years (BV3=?) using straight line depreciation method. b) What is the depreciation in the second year (D2= ?) using double declining balance depreciation method. De = dB(1 - d)? = dBV1 c) What is the depreciation in the 5" (Ds=?) year if you switch between depreciation methods (start with double declining balance and switch to straight line when necessary)