Question

Determine if the sequence below is arithmetic or geometric and determine the common difference/ratio in simplest form.

36, 12, 4, ...

Answer 1

Geometric and the ratio is 1/3

It is geometric because you are multiplying to get to the next number in the sequence. in order to get to the next number you have to multiply by 1/3. 36*1/3=12. 12*1/3=4.