Find the common ratio for the following sequence 20, 10, 5, 2 1/2

your answer to the qustion is 10/20 = 0.5, 5/10=0.5 2 1/2 / 5 = 0.2 if this right or worng tell me

0.5

Step-by-step explanation:

We are given the following sequence and we are to determine its common ratio:

20, 10, 5, 2 1/2

In a sequence, the common ratio is the ratio of a term to its previous term.

So here, we will divide each term by its previous term to find the common ratio.

2 1/2 = 2.5 - --> 2.5/5 = 0.5

5/10 = 0.5

10/20 = 0.5

Therefore, the common ratio of this sequence is 0.5.