Find the sum of first six terms of the G.P. 5, 15, 45, …

Find the sum of first five terms of the G.P 5,15,45…..

Which term of the G.P. 5,15,45,…. Is 3645?

Find the sum of the first 5 terms of the G.P whose first term is 1 and common ration is 2/3.

The sum of first ten terms of an A.P. is 155 and the sum of first two terms of a G.P. is 9. The first term of the A.P. is equal to the common ratio of the G.P. and the first term of the G.P. is equal to the common difference of the A.P. Find the two progressions.

The sum of first ten terms of an A.P. is 155 and the sum of first two terms of a G.P. is 9. The first term of the A.P. is equal to the common ratio of the G.P., and the first term of the G.P. is equal to the common difference of the A.P. Find the two progressions.

The sum of first two terms of an infinite G.P. is 5 and each term is three times the sum of the succeeding terms. Find the G.P.

The sum of first three terms of a G.P. is 15 and sum of next three terms is 120. Find the sum of first n terms.

If the sum of first 10 terms is 33 times the sum of first 5 terms of G.P. find the common ratio.

If the sum of first 10 terms is 33 times the sum of first 5 terms of G.P., find the common ratio.