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?

Starting salary = ₹5000 Increment each year = ₹200 ₹5000, ₹5200, ₹5400, ............, ₹7000. The above list of numbers is an A.P. with first term (a) = ₹5000 and common difference (d) = ₹200. Let it take n years to reach ₹7000. By formula, ⇒ a n = a + (n - 1)d ⇒ 7000 = 5000 + 200(n - 1) ⇒ 7000 - 5000 = 200(n - 1) ⇒ 2000 = 200(n - 1) ⇒ n - 1 = ⇒ n - 1 = 10 ⇒ n = 10 + 1 = 11. Hence, in 11th year Subba Rao's income will reach ₹ 7000.

Find the 20th term from the last term of the AP : 3, 8, 13, . . ., 253.

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Ramkali saved ₹5 in the first week of a year and then increased her weekly savings by ₹1.75. If in the nth week, her weekly savings become ₹20.75, find n.

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Mathematics

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?

AP

Related Questions

Find the 20th term from the last term of the AP : 3, 8, 13, . . ., 253.

The sum of the 4th and 8th terms of an AP is 24 and the sum of the 6th and 10th terms is 44. Find the first three terms of the AP.

Ramkali saved ₹5 in the first week of a year and then increased her weekly savings by ₹1.75. If in the nth week, her weekly savings become ₹20.75, find n.