How do you find the common ratio of $-3,6,-12,24,...$ ?

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Answer 1 · 2016-09-25T17:41:42

Common ratio is $-2$

In a Geometric series, common ratio is the ratio of a term with respect to its preceding term.

Here we have the series ${-3,6,-12,24,.................}$

and hence common ratio is $6/-3=-12/6=24/-12=-2$

How do you find the common ratio of -3,6,-12,24,...-3,6,-12,24,...?