Rao started work in 1995 at an annual salary of Rs. 5000 and received Rs200 raise each year. In what year did his annual salary will need Rs7000?
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According to the question, the annual salary received by him in 1995,1996,1997, ....is 5000, 5200,5400...
Clearly, A.P. with first term 5000 and common difference 200 since wa have to find the year in which his salary is Rs. 7000.
An= 7000
=) A(n-1).d= 7000
=)5000+(n-1).200= 7000
=) (n-1)200= 7000-5000= 2000
=) n-1= 10
=) n= 11
Hence,
11th salary of Rao will be Rs.7000
We conclude that after 10years in the year 2005 his annual salary will be Rs.7000.
hope it helps ✔️
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