An oil refinery has decided to purchase a new dring equipment with a useful life of 15 years. The cost of taxes, transportation, and instalation of this equpment is estimated to be $20.000 For deton purposes the salvage value (V) of the ding equipmental at the end of year 15 is estimated to be $10,000, while its book value after 10 years $100,000 Calculate the purchase price of the oring equipment using the straight line depreciation method