Calculate the ownership cost per hour for a dump truck powered by a 120hp gasoline engine based on the following data:

- Purchase price(p)=1,200,000 birr

-Salvage value(F) =800,000 birr

-Operation factor =50%

-Useful life(n) =5years

-Working hours per year = 1800

-Maintenance and repair cost = 120% 0f annual depreciation

-Diesel fuel cost = 3.8/gallon

-Fuel consumption =0.04gallon/hp/hr

-Lube oil cost = 10% of fuel

-Interest rate(i) =10%

-Assume straight line depreciation and use annual investment formula given below.