Question

Question #11699

Answer 1

The ratio of `a_(n+1)/a_n` is `3/2`.

Explanation:

A geometric progression (os geometric sequence) has terms in a common ratio: `a_(n+1)/a_n`

In this case, we get `30/20 = 3/2`.

We can check by also calculating: `45/30 = (3xx15)/(2xx15) = 3/2`