Question

What is the type of sequence and the common difference/ratio for question 11

Answer 1

Solution:

The numbers are given below as

$\lbrace3600,1440,576,230.4,...\rbrace$

To figure out the common ratio, we will use the formula below

$r=\frac{t_2}{t_1}=\frac{t_3}{t_2}=\frac{t_4}{t_3}$

By substituting the values, we will have

$\begin{gathered} r=\frac{1440}{3600}=\frac{576}{1440}=\frac{230.4}{576} \\ r=\frac{2}{5} \end{gathered}$

Hence,

The final answer is

The type of sequence is GEOMETRIC

The common ratio is 2/5