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

In an AP, S<sub>p</sub> = q, S<sub>q</sub> = p and S denotes the sum of first r terms. Then, S&l…

Which term of the A.P. 92, 88, 84, 80, ...... is 0?

How many terms are there in the GP 5, 20, 80, 320........... 20480?

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 11 terms of an arithmetic progression if the 3<sup>rd</sup> term is -1 and the …

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

A piece of equipment cost a certain factory 6,00,000. If it depreciates in value, 15% the first year, 13.5% the next ye…