Subba Rao started work in 1995 at an annual salary of $5000 and received an increment of $ 200 each year. In which year did his income reach $ 7000 ?

Puneet Sharma starts his job in a school with a certain monthly salary and earns a fixed increment every year. If his salary was rs.15000 after 4 years service and rs. 18000 after 10 years of service. What was his starting salary and what is the annual increment?

The rate at which monthly salary of a person increases annually is in A.P. If he was drawing $4500 p.m. in his 1 1th year of service and $ 6900 p.m. in his 27th year of service, find salary at start and annual increment. Also find monthly salary after 30 years.