The common difference of an arithmetic progression in which `a_15-a_6=-27/2` is (where `a_n`, is the `nth` term of the given `AP`)

The nth term of an arithmetic progression is 3n-1. Find the progression.

The sum of first n terms of an arithmetic progression is 270. If common difference of the arithmetic progression is 2 and the first term is an integer, then number of possible values of n gt 2 is

Write the common difference of the arithmetic progression whose nth term is a] n^(2) + 5 b] 2n^(2) -6

If the common difference of an A.P. is 3, then a_20 - a_15 is

In an arithmetic progression, if a = 2n +1, then the common difference of the given progression is

The sum of n terms of an Arithmetic progression is S_n=2n^2+6n . Find the first term and the common difference.

Write the common difference of an A.P.Whose nth term is a_n=3n+7