The first term of a GP is 27 and its 8th terms is `1/81`. Find the sum of its first 10 terms.

The first term of G.P. is 27 and 8th term is 1/81 . Find the sum of its first 10 terms.

The first term of a G.P. is 27 and its eight term is (1)/(81) . Find the sum of its first 10 terms.

The second term of a GP is 24 and its fifth term is 81. Find the sum of its first five terms.

If the first term of a G.P is 27 and 8th term is 1/81 , then the sum of its first 10 terms is (i) 27/2(1-1/(3^(10))) (ii) 81/2(1/(3^(10))-1) (iii) 27/2(1/(3^(10))-1) (iv) 81/2(1-1/(3^(10)))

If the first term of a GP is 729 and 7th term is 64, then the sum of its first seven terms is

If the first term of a G.P. is 729 and its 7^(th) term is 64, then the sum of first seven terms is

It the 10^(th) term of an A. P. is 1/20 and its 20^(th) term is 1/10, then the sum of its first 200 terms is :

It the 10^(th) term of an A. P. is 1/20 and its 20^(th) term is 1/10, then the sum of its first 200 terms is :

If the 10^(th) term of an A.P. is 1/5 and its 20^(th) term is 1/3 , then the sum of its first 150 terms is:

If the 10^(th) term of an A.P. is 1/5 and its 20^(th) term is 1/3 , then the sum of its first 150 terms is: