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

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 a G.P. is 27 and its eight term 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 fifth terms of an A.P. is 30 and its twelfth term is 65, find the sum of its first 20 terms.

The second term of a G.P. is 18 and the fifth term is 486. Find: (i) the first term, (ii) the common ratio

A G.P. has first term 729 and 7th term 64. Find the sum of its first 7 terms.

A G.P. has first term 729 and 7th term 64. Find the sum of its first 7 terms.

The sum of the first three terms of a G.P. is 21 and the sum of the next three terms is 168. Find the sum of first five terms.

if second terms of a GP is 2 and the sun of its infinite terms is , then its first term is