What is the sum of the infinite geometric series?

120+40+40/3+40/9+...

a.136

b.156

c.180

d.184

Guest Feb 16, 2021

#1**0 **

This website explains a part of this --> https://www.quora.com/What-is-1-3-1-9-1-27-1-81-1-243

This means the value of 40/3 + 40/9 +... = 40/2, which equals 20.

This means your answer is 120 + 40 + 20, which gives you the answer of 180 :)

Logarhythm Feb 16, 2021