Universal Ltd. took over machinery of ₹ 3,30,000, furniture of ₹ 1,60,000 and liabilities of ₹ 80,000 from Amol Ltd. for a purchase consideration of ₹ 4,50,000. The payment to Amol Ltd. was made by issue of 10% Debentures of ₹ 50 each at a discount of 10%. The number of debentures issued to Amol Ltd. was: