Explanation:

- Let’s break it down:

- Aaru invests Rs. 12,600 and stays for 5 months. His investment = 12,600 × 5 = 63,000 units.

- Chand invests 1/3 of Aaru’s amount: 12,600 / 3 = 4,200, and stays for 12 months. His investment = 4,200 × 12 = 50,400 units.

- Sandhu joins after 5 months, invests Rs. 6,000 for 7 months. His investment = 6,000 × 7 = 42,000 units.

- Total investment units = 63,000 (Aaru) + 50,400 (Chand) + 42,000 (Sandhu) = 155,400 units.

- Chand received Rs. 3,000 profit.

- Chand’s share (profit ratio): 50,400 / 155,400 = 3,000 / Total Profit ? Total Profit = (3,000 × 155,400) / 50,400 = Rs. 9,250

- Correct option: Option 4 - Rs. 9,250

- Other options don't match calculation.