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

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 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 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,the common difference is 3 and the last term is 80; find the number of terms.

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 first term of an A.P. is 5, the last term is 45 and the sum of its terms is 1000. Find the number of terms and the common difference of the A.P.

The first term of an A.P. is 5 and its common difference is -3 . Find the 11th term of an A.P.

The first term of an A.P. is 3, the last term is 83 and the sum of all its terms is 903. Find the number of terms and the common difference of the A.P.

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

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