Question

find the sum of the n terms of the geometric progression 1,5/4,25,16,... and find the least value of n for which the sum exceeds 20

Answer 1

Answer:

Second term of a GP is 1000 and the common ratio is r = where n is a natural number. Pn is the product of n terms of this GP. P6 > P5 and P6 > P7, what is the sum of all possible values of n?

A. 4

B. 9

C. 5

D. 13

Correct Answer

Choice B

9