For A.P. T<sub>18</sub> - T<sub>8</sub> = ........ ?

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

If S<sub>n</sub> denote the sum of the first n terms of an A.P. If S<sub>2n</sub> = 3S<sub&gt…

After striking the floor, a rubber ball rebounds to 4/5<sup>th</sup> of the height from which it has fallen.…

The 9<sup>th</sup> term of an A.P. is 449 and 449<sup>th</sup> term is 9. The term which is equa…

A bacteria gives birth to two new bacteria in each second and the life span of each bacteria is 5 seconds. The process o…

If the first term of an A.P. is a and nth term is b, then its common difference is

The sum of first five multiples of 3 is: