Question

What is common ratio

Answer 1

1/5

Explanation:

Notice that 125 is 1/5 th of 625; 25 is 1/5 th of 125; 5 is 1/5 of 25, and so on.

Thus, the common ratio is 1/5.

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Answer 2

B

Explanation:

The common ratio in this case, is something that is going to make the geometric sequence go down. Your will make it go up.

Common ratio = second term / first term

common ration = 125/625 = 25/125 which is obtained by dividing both top and bottom of the fraction by 5.

Its not the best possible answer, but it is the best among those given.