Find the production cost per 1000 kg steam in a steam plant when the evaporation rate is 7.2 kg steam per kg coal; initi

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Find the production cost per 1000 kg steam in a steam plant when
the evaporation rate is
7.2 kg steam per kg coal; initial cost of plant, $150,000; annual
operational cost exclusive
of coal, $15,000. Assume life of 20 years; no final value; interest
on borrowed capital, 4%;
on sinking fund, 3%. Average steam production is 14,500 kg per hr;
cost of coal, $8.00 per
ton.