If the sum of a certain number of terms ...

If the sum of a certain number of terms of the A.P. 25, 22, 19, .. . is 116. Find the last term.

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MODERN PUBLICATION-SEQUENCES AND SERIES-EXERCISE

Find the sum to n terms of the A.P. whose kth term is 5k + 1.
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If the sum of n terms of an A.P. is (pn+qn^2), where p and g are const...
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If the sum of a certain number of terms of the A.P. 25, 22, 19, .. . i...
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Find the sum of 32 terms of an A.P. whose third term is 1 and the 6th ...
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If the first term of an A.P. is 2 and the sum of the first five terms ...
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If the first term of an A.P. is 2 and the sum of the first five terms ...
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If the 12th term of an A.P. is -13 and the sum of the first four terms...
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Show that the sum of n consecutive odd integers beginning with 1 equal...
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Show that the sum of first n even numbers is equal to (1+1/n) times th...
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Find the sum of odd integers from 1 to 2001. (A) 100200 (B) 1002001 (C...
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Find the sum of all natural numbers between 99 and 1001 which are mult...
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Find the sum of first hundred even natural numbers divisible by 5.
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Find the sum of all integers between 50 and 500, which are divisible b...
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Find the sum of all numbers between 200 and 400 which are divisible by...
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How many terms are there in A.P. whose first and fifth terms are -14 a...
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If the sum of the first n terms of a sequence is of the form An^2+ Bn,...
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If the 5th and 12th terms of an A.P. are 30 and 65 respectively, what ...
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If the first term a1 of an A.P. is 22, the common difference d = -4 an...
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In an A.P., if p^(th) term is 1/q and q^(th) term is 1/p, prove that t...
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If the sum of first p terms of an A.P. is equal to the sum of the firs...
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