Subba Rao started work in 1995 at an annual
Salary of Rs.8000 and received
an increment
Rs. 200 each year. In which
which year did his
income reach Rs. 17000
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Answered by
1
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 nth year, his salary be Rs 7000.
Therefore, an = 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
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Answer:
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Answer is in the attachment.
Answer is 11 years.
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