In an A.P. the first term is 25, n^th term is -17 and the sum of n terms is 132. Find n and the common difference.
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In an A.P. the first term is 25, n^th term is -17 and the sum of n terms is 132. Find n and the common difference.

KnowledgeBoat · Accepted Answer

Given, a = 25, a_n = -17 and S = 132 ⇒ a + (n - 1)d = -17 ⇒ 25 + (n - 1)d = -17 ⇒ (n - 1)d = -42 ........(i) We know that, Substituting value of n in (i), ⇒ (33 - 1)d = -42 ⇒ 32d = -42 ⇒ d = - Hence, n = 33 and d = .

Mathematics

In an A.P. the first term is 25, n^th term is -17 and the sum of n terms is 132. Find n and the common difference.

AP

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Mathematics

In an A.P. the first term is 25, nth term is -17 and the sum of n terms is 132. Find n and the common difference.

AP

Related Questions

Find the sum of all natural numbers between 250 and 1000 which are divisible by 9.

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In an A.P. the first term is 25, n^th term is -17 and the sum of n terms is 132. Find n and the common difference.

Find the A.P. whose 4^th term is 9 and the sum of its 6^th term and 13^th term is 40.