The incomes that Subba Rao earned is in A.P., as every year his salary is increased by Rs 200.

Therefore, the salaries of each year from 1995

5000, 5200, 5400, …

Here, *a* = 5000

*d* = 200

Let after *n*^{th} year, his salary be Rs 7000.

Therefore, *a*_{n} = *a* + (*n* − 1) *d*

7000 = 5000 + (*n* − 1) 200

200(*n* − 1) = 2000

(*n* − 1) = 10

*n* = 11

**Therefore, in 11th year, his salary will be Rs 7000.**