A man invests a sum of money in ₹ 25 shares, paying 12% dividend and quoted at ₹ 36. If his annual income from these shares is ₹ 720, calculate :

(i) his total investment,

(ii) the number of shares bought by him,

(iii) the percentage return on his investment.

A man buys 400, ₹ 10 shares at a premium of ₹ 2.50 per share. If the rate of dividend is 12%, find :

(i) his investment;

(ii) annual dividend received by him;

(iii) the rate of interest received by him on his money.

Divide ₹ 50,760 into two parts such that if one part is invested in 8%, ₹ 100 shares at 8% discount and the other in 9%, ₹ 100 shares at 8% premium, the annual incomes from both the investments are equal.

Which is the better investment:

10%, ₹ 100 shares at ₹ 120 or 8%, ₹ 100 shares at ₹ 72?