The following information is available from the annual report of DDN Inc.: Current assets . . . . Rs. 480,000 Operating expense ratio = 10% Average total assets . . . . 2,000,000 Gross Profit Margin = 20% Average total equity . . . . 800,000

Current liabilities . . . . Rs.300,000 Operating expenses. . . . . 240,000 Net income . . . . 80,000 Calculate: a) Net sales b) Working Capital c) Return on Equity