A shopkeeper bought two articles for Rs. x and Rs. (x + 100) and the marked price of the article A is 80% more than the cost price and the Marked price of the article B is 60% more than the cost price. If article A and B are sold at 20% and 25% discount respectively. Then the selling price of article B is Rs. 60 more than the selling price of article A . Find the sum of the marked price of article A and article B.