Ramees bought 4 dozen apples at Rs. 12 per dozen and 2 dozen apples at Rs. 16 per dozen. He sold all of them to earn 20%. At what price per dozen did he sell the apples?
Jameel bought paper sheets for Rs. 7200 and spent Rs. 200 on transport. Paying Rs 600 he had 330 boxes made. Which he said at Rs. 28 each. What is his profit Percentage?