Richa purchased an article at 45 of its list price and sold it for 20% more than the list price. Richa's profit per cent was
A shopkeeper buys an article for Rs 2400 from a wholesaler at 20% rebate on its list price. He marks up the list price of the article bought by 10% and then sells it for Rs 3498 including sales tax on the marked-up price. Find:
i) the rate of sales tax
ii) the shopkeeper’s profit as per cent.