(a) A trader sold 250 articles for ¢525,000.00 at a profit of 25%.

(i)Calculate the cost price of each article
(ii) If the trader had wanted 45% profit on the cost price, how much should he have sold each of the articles?

(b)Find the simple interest on ¢880,000.00 for 2 ½ years at 3¼% per annum