Question

Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form.3,15,75,...This is______sequence and the______is equal to___.

Answer 1

Given

3, 15, 75, ....

Answer

It can be seen that

`\begin{gathered} (15)/(3)=5 \\ (75)/(15)=5 \end{gathered}`

This is geometric sequence and the common ratio is equal to 5