Answet the question its financial management subject solve it properly...

J. designer just recently open as an upscale dress shop in hangu area. The owner is trying to decide whether to take the discount offered fron his suppliers, or whether to pay at the end of the month. J. suppliers are offering him a 5% discount if he pays within 20 days; otherwise, the balance is due 40 days after purchase. What are J. nominal and effective annual costs of trade credit ?