Here, Number of shares = 50, FV = Rs. 100,
MV = Rs. 180, rate of dividend = 40%
∴ Sum invested = Number of shares × MV
= 50 × 180
= Rs. 9000
Dividend per share = 40% of FV
= 40/100 × 100
Dividend = Rs. 40
∴ Total dividend on 50 shares = 50 × 40
= Rs. 2000
Now, rate of return = \(\frac{\text{Total dividend}}{\text{Sum invested}} \times 100\)
\(= \frac{2000}{9000} \times 100\)
= 22.2%
∴ Rate of return on investment is 22.2%.