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

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

What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?

If the sum of first n even natural number is equal to k times the sum of first n odd natural numbers, then k =

Given A = 2<sup>65</sup> and B = (2<sup>64</sup> + 2<sup>63</sup> + 2<sup>62&l…

The sum of n terms of an A.P. is 3n<sup>2</sup> + 5n, then 164 is its

The 3<sup>rd</sup> and 6<sup>th</sup> term of an arithmetic progression are 13 and -5 respective…

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