Cost accounting course

X Ltd. manufactures product A which yields two by-products B and C. In a period the amount spent up to the point of separation was OMR 20,600. Subsequent expenses were: Gross sales value of product A,B and C was RO 15,000, RO 10,000 and RO 5,000 respectively. It was estimated that the net profit as a percentage of sales in B and C would be 25% and 20% respectively. Ascertain the profit earned on A