21. A man bought 20 shares of Rs.50 at 5 discount, the rate of dividend being 13.5%. The rate of interest
obtained is:
22. A 12% stock yielding 10% is quoted at
23. A 9% stock yields 8%. The market value of the stock is:
24. By investing in 16 2/3% stock at 54, one earns Rs.1500. The investment made is:
25. A man invests in a 16% stock at 128. The interest obtained by him is: