Let the investment in each case = Rs. 120 In the first case,
Dividend on Rs. 120 = Rs. 6
In second case, Dividend on Rs. 10
= 8 × 10/100 = 0.8
Now dividend on Rs. 15 = 0.8
then dividend on Rs. 120 = (0.8 × 120)/15 = Rs. 6.4
It is clear that, second investment i.e. 8%
Rs.10 shares at 15 is more profitable.