A foundry is melting pig iron for producing castings. Coke and limestone are used to melt the metal. 150 kg of coke and 50kg of limestone are required to melt one ton of pig iron. The loss in melting is 5% and the normal rejection amounts to 10% of casting made. Cost of pig iron is Rs 895 per ton. Cost of coke is rs 650 per ton and cost of limestone is rs 100 per ton. Rejections fetch a return of 60 paise per kg. Find the

A) net total cost

B) Output

C) saleable Output Raw material cost per kg of saleable casting.