How do you find the common ratio of 3,6,12,24,...?

Oct 31, 2016

Common ratio is $2$.

Explanation:

In a geometric sequence common ratio is the ratio between a term and its preceding term and is always constant.

Here $\frac{6}{3} = 2$ for first term and for further terms in the sequence too

$\frac{12}{6} = 2$ and $\frac{24}{12} = 2$.

Hence common ratio is $2$.

Note - In arithmetic sequence, we have common difference.