A shopkeeper marks an article at Rs. 60 and sells it at a discount of 15%. If he still makes 20% profit, then the cost price, in rupee, is
A shopkeeper buys an article for Rs. 450. He marks it at 20% above the cost price. Find : (i) the marked price of the article. (ii) the selling price, if he sells the article at 10 percent discount. (iii) the percentage discount given by him, if he sells the article for Rs.496.80.