The sum of certainterms of an A.P. is 128. If the first term is 2 and the last term is 14, find the common difference.

The third term of an A.P. is 25 and the tenth term is -3. Find the first term and the common difference.

The third term of an A.P. is 25 and the tenth term is - 3. Find the first term and the common difference.

If first term is 2 and last term is 10 then find the sum of 5th term

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.

The third term of an A.P. is 25 and tenth term is - 3. Find the first term and common difference.

Find the sum of 32 terms of an A.P. whose third term is 1 and the 6th term is -11.

Find the nth term of AP whose first term is 12 and common difference is 7.

The first term of an A.P. is 5, the common difference is 3 and the last term is 80, find the number of terms.

The first term of an AP is 5, the last term is 45 and the sum is 400. Find the number of terms and the common difference.