Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

Question #d6180

1 Answer

Jan 16, 2016

5

Explanation:

The sum of an infinite geometric series is #S=a/(1-r)#
where a is first term and r is the common ratio.

Therefore, #S=4/(1-1/5)=4/(4/5)=5#

Related questions

See all questions in Infinite Series

Impact of this question

1546 views around the world

You can reuse this answer
Creative Commons License