Ravi bought two products, ‘M’ and ‘N’, at the same price. He added a markup of 20% on ‘M’ and 50% on ‘N’. Then, he gave a discount of Rs. 180 on ‘N’ and Rs. 240 on ‘M’. If the profit on ‘M’ was 25% less than the profit on ‘N’, calculate the combined cost price of both products.