If the general term of an Arithmetic progression is `3n+5` then its common difference is ......

If the sum of 'n' terms of an arithmetic progression is S_(n)=3n +2n^(2) then its common difference is :

If S_(n)=n^(2)a+(n)/(4)(n-1)d is the sum of the first n terms of an arithmetic progression, then the common difference is

The sum of the first 20 terms of an arithmetic progression whose first term is 5 and common difference is 4, is __________.

If the nth term of an arithmetic progression is 2n-1 , then what is the sum upto n terms?

It the sum of first 10 terms of an arithmetic progression with first term p and common difference q , is 4 times the sum of the first 5 terms, then what is the ratio p : q ?

If the n^(th) term of an arithmetic progression is (2n-1). Find the 7^(th) term.

If the nth term of an arithmetic progression is 3n+7, then what is the sum of its first 50 terms ?

The angles of a quadrilateral are in arithmetic progression and their common difference is 10^(@) . Find the angles.