Once you attempt the question then PrepInsta explanation will be displayed.

The initial ratio of Donald Crisp and Thomas Mitchell is 3: 2

Increased salary of Donald Crisp is 2: 3 that means if it was 2 then it becomes 3.

i.e., if it was 2, it becomes 3

Or, 1 becomes 3/2

But the Donald Crisp's ratio was 3, so we have to calculate for 3

3 becomes \frac{3}{2} \times 3 = \frac{9}{2} = 4.5

Similarly, Thomas Mitchell’s increase is 3: 4

3 becomes 4

Or, 1 becomes 4/3

But the Thomas Mitchell's ratio was 2, so we have to calculate for 2

i.e., 2 become \frac{4}{3} \times 2 = \frac{8}{3} [/latex</span><br />
<br />
<span style="font-weight: 400;">That means if the old ratio of Donald Crisp: B = 3: 2</span><br />
<br />
<span style="font-weight: 400;">Then the new ratio of Donald Crisp: Thomas Mitchell = 4.5: \frac{8}{3}

So, the new ratio of Donald Crisp: Thomas Mitchell = 13.5: 8

Now, the salary of Thomas Mitchell = (Thomas Mitchell's share/ Sum of ratios)* total salary

Hence, the salary of Thomas Mitchell = \frac{8}{21.5} \times 21500 = 8000