What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28?

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

If the first, second and last term of an A.P. are a, b and 2a respectively, its sum is

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

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

The 7<sup>th</sup> and 12<sup>th</sup> term of an arithmetic progression are -15 and 5 respectiv…

The first and last terms of an A.P. are 1 and 11. If the sum of its terms is 36, then the number of terms will be

If the sum of n terms of an A.P. is 3n<sup>2</sup> + 5n then which of its terms is 164 ?