Question

What is the common ratio of 9, 81, 729. -6561

Answer 1

Given:

Consider the given sequence is 9, 81, 729, 6561.

To find:

The common ratio.

Solution:

We have,

9, 81, 729, 6561

Here,

First term = 9

Second term = 81

Divide the second term by first term to get the common ratio.

`r=(81)/(9)`

`r=9`

Similarly,

`(81)/(9)=(729)/(81)=(6561)/(729)=9=r`

Therefore, the common ratio is 9.