If the sum of p terms of an A.P. is q and the sum of q terms is p, then the sum of (p + q) terms will be

If a rubber ball consistently bounces back $$\frac{{2}}{{3}}$$ of the height from which it is dropped, what fraction of …

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

If the fifth term of a GP is 81 and first term is 16, what will be the 4<sup>th</sup> term of the GP?

(1) + (1 + 1) + (1 + 1 + 1) + ....... + (1 + 1 + 1 + ...... n - 1 times) = ......

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…

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

15<sup>th</sup> term of A.P., x - 7, x - 2, x + 3, ........ is