In an A.P., if the first term is 22, the common difference is `-4` and the sum to `n` terms is 64, find `n` .

If the first term a_1 of an A.P. is 22, the common difference d = -4 and the sum to n terms is 64, find n. Explain the double answer.

If the first term a_(1) of an A.P. is 22, the common difference d=-4 and the sum to n terms is 64, find n. Explain the double answer.

The first term and common difference of an A.P. are respectively 4 and 2. If the sum up to n terms is 88, find n.

In an A.P. given that the first term (a) = 54, the common difference (d) = -3 and the n^(th) term (a_(n))=0 , find n and the sum of first n terms (S_(n)) of the A.P.

In an A.P. given that the first term (a) = 54, the common difference (d) = -3 and the n^(th) term (a_(n))=0 , find n and the sum of first n terms (S_(n)) of the A.P.

Find the sum of A.P first term 3 and common difference 2 and n=5

In an A.P., the first term is 22, n t h term is -11 and the sum to first n terms is 66. Find n and d , the common difference.

In an A.P.,the first term is 22, nth term is -11 and the sum to first n terms is 66. Find n and d, the common difference.

The sum of n terms of an A.P. is 136, the common difference is 4 and the last term is 31, find the number of terms.

Given sum of the first n terms of an A.P is 2n+ 3n^(2) . Another A.P is formed with the same first term and is double the common difference, the sum of n terms of the new A.P. is