The sum of some terms of a GP is 315 whose first term and the common ratio are 5 and 2 respectively. Find the last term and the number of terms.

The sum of some terms of G.P.is 315 . whose first term and the common ratio are 5 and 2, respectively. Find the last term and the number of terms.

The fourth, seventh and the last term of a G.P. are 10,80 and 2560 respectively. Find the first term and the number of terms in the G.P?

If the first two terms of a H.P are 2/5 and 12 /13 respectively . Then find the largest term.

The sum of the first two terms of a GP Is -4 and the fifth term is 4 times the third term. Find the first term and the common ratio.

Find the 12^(th) term of a G.P. whose 8^(th) term is 192 and the common ratio is 2.

Find the sum of 32 terms of an AP whose third term is 1 and the 6^th term is -11.

The sum of the first three terms of a GP is (39)/(10) and their product is 1. Find the common ratio and the terms.

What is the sum of first n terms of an A.P. whose first term is 'a' and common difference is 'd'?

Suppose x and y are real numbers such that -1lt xlt ylt 1 . Let G be the sum of the geometric series whose first term is x and whose common ratio is y, and let G' be the sum of the geometric series whose first term is y and common ratio is x. If G=Gʻ, then the value of (x +y)

The 5^(th) and 7^(th) terms of a G.P. are 12 and 48 respectively. Then the 9^(th) term is