[amp_mcq option1=”03:02:01″ option2=”03:02:02″ option3=”03:02:03″ option4=”06:04:05″ correct=”option1″]
The correct answer is $\boxed{\text{D}}$.
Let’s say the total profit of the firm is $100.
Before X is admitted, A and B share the profit in the ratio of 3 : 2. So, A gets $30 and B gets $20.
When X is admitted, he gets a share of $\frac{1}{3}$ of the total profit. So, X gets $33.33.
The new profit sharing ratio of A, B and X is 30 : 20 : 33.33 = 6 : 4 : 5.