Q. 113.5( 4 Votes )

Mark the correct A. 1/3

B. 2/3

C. 1/4

D. 3/4

Answer :

Let the first term be a and the common ratio be r.

Sum of infinite terms is given by

The general term of any GP is given by arn.

The infinite sum of all successive terms is

(arn)r + (arn)r2 + (arn)r3 + ...



1-r = 2r

r = 1/3.

Also given that

a+ar = a(1+r) = 1.

a = 1/(1+r) = 3/4.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

A person has 2 paRD Sharma - Mathematics

The sum of the seRD Sharma - Mathematics

How many terms ofRD Sharma - Mathematics

If <span lang="ENRD Sharma - Mathematics

Let anRD Sharma - Mathematics

Find the sum of 2RD Sharma - Mathematics

If <span lang="ENRS Aggarwal - Mathematics

Find the sum (41 RS Aggarwal - Mathematics

Find the sum (2 +RS Aggarwal - Mathematics

If<span lang="EN-RS Aggarwal - Mathematics