From the following particulars, compute the machine hour rate : Cost of machine *90,000 Cost of installation * 10,000 Scrap value at the end of 10 years * 5,000 Indirect wages and materials cost for the machine 500 per year Supervision cost for four similar machines 16,000 per year Insurance premium for the machine 200 per quarter Rent of the machine shop 400 per month Electricity cost for the machine shop 100 per month Power consumption of the machine is 20 units per actual working hour. Power cost is 50 paise per unit. The total area of the machine shop is 600 sq. metres of which this machine occupies only 150 sq. metres. There are 200 light points in the machine shop of equal wattage of which this machine utilizes only 40 points. It is estimated that the machine will normally work for 2,700 hours in a year but it is apprehended that the machine will remain idle for 200 hours