Amount invested = Rs 10,200
Market value of each share = Rs 100
∴ Number of shares purchased = = 102
Brokerage paid for purchasing the shares = 0.1% of Rs 10,200 = = Rs 10.20
Selling price of 60 shares = MV of each share × Number of shares = Rs 125 × 60 = Rs 7,500
Number of remaining shares = 102 − 60 = 42
Selling price of 42 shares = MV of each share × Number of shares = Rs 90 × 42 = Rs 3,780
Total money received on selling 102 shares = Rs 7,500 + Rs 3,780 = Rs 11,280
Total brokerage paid on selling the shares = 0.1% of Rs 11,280 = = Rs 11.28
Net income of Smt. Mita Agarwal = Total money received on selling 102 shares − Total brokerage paid on 3 trades
= Rs 11,280 − (Rs 10.20 + Rs 11.28)
= Rs 11,258.52
Since net income of Smt. Mita Agarwal is more than the amount invested, so Smt. Mita Agarwal made profit.
Profit made = Amount invested − Net income = Rs 11,258.52 − Rs 10,200 = Rs 1,058.52
Thus, Smt. Mita Agarwal made profit of Rs 1,058.52.