If something which costs 425 rupees is sold for 440 rupees, what is the profit got? If something costing 235 rupees is to be sold at a profit of 25 rupees, what should be the selling price? If 15 rupees profit was made on selling something for 120 rupees, what was its actual cost?
If we write c for the cost, p for the profit and s for the selling price, in what all ways can we write the relation among them?