What is the value of r of the geometric series? 0.8 1.3 3.0 3.2

Solution:

A geometric series is defined by its first term and common ratio  ‘r’.

The common ratio is obtained by dividing the consecutive terms by each other.

A GP is of form a, ar, ar², ar³,.......arⁿ

The common ratio of the series ‘r’ is found by ar/a, ar² /ar, ...., and so on.

1.3/0.8 = 1.625

3.0/1.3 = 2.30769

3.2 / 3.0  = 1.067

This is not a geometric series because the ratio between consecutive terms is not constant.

What is the value of r of the geometric series? 0.8 1.3 3.0 3.2

Summary: The value of r of the geometric series 0.8 1.3 3.0 3.2 cannot be determined as there is no common ratio and it is not a geometric series.