Question

Find the common ratio for the following sequence

27,9,3,1

Answer 1

With each step the value gets divided by 3

so the common ratio r=1/3

Answer 2

The common ratio is
`(1)/(3)`

Explanation:

Given sequence,

27, 9, 3, 1

Since,

`(9)/(27)=(3)/(9)=(1)/(3)`

Hence, in the given sequence the ratio of a term to its previous term is
`(1)/(3)`

Therefore, we can say that,

The common ratio of the given sequence is
`(1)/(3)`