The 2<sup>nd</sup> and 6<sup>th</sup> term of an arithmetic progression are 8 and 20 respectivel…

What is the sum of the first 12 terms of an arithmetic progression if the 3<sup>rd</sup> term is -13 and the…

The common difference of the A.P. is $$\frac{1}{{2q}},$$ $$\frac{{1 - 2q}}{{2q}},$$  $$\frac{{1 - 4q}}{{2q}},$$…

Find the first term of an AP whose 8<sup>th</sup> and 12<sup>th</sup> terms are respectively 39 …

The first and last term of an A.P. are a and l respectively. If S is the sum of all the terms of the A.P. and the common…

Let S denotes the sum of n terms of an A.P. whose first term is a. If the common difference d is given by d = S<sub&g…

The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is

The 4<sup>th</sup> and 7<sup>th</sup> term of an arithmetic progression are 11 and -4 respective…