What is the common difference between ratio between successive terms in the sequence 1.5, 1.2, 0.96, 0.768

Answer is D: 0.8

Step-by-step explanation:

r = 1.2 / 1.5 = 0.8

First, we should see if there are any common differences. We do this by subtracting each term from its previous:

1.5 - 1.2 = 0.3

1.2 - 0.96 = 0.24

Already, we can tell that there is no common difference.

Let's look at common ratio:

1.2/1.5 = 0.8

0.96/1.2 = 0.8

0.768/0.96 = 0.8

Therefore, there is a common ratio and it is 0.8.