Explanation:

To determine the correct shares of A and B from the profit, we need to look at their investments and the time each invested:

- A's Investment: Rs. 4000 for 12 months.

- B's Investment: Rs. 5000 for 8 months, as he joined 4 months later.

Calculate the effective capital:

- A's Share = 4000 * 12 = 48000

- B's Share = 5000 * 8 = 40000

Ratio of their capital contributions is:

- A:B = 48000:40000 = 6:5

The total profit is Rs. 22000. Divide it by the ratio:

- A's Share = (6/11) * 22000 = Rs. 12000

- B's Share = (5/11) * 22000 = Rs. 10000

Finally, option 2 is correct.

Option 2: 12000, 10000