What is the common ratio between successive terms in the sequence?

27, 9, 3, 1, 1927

1/3

Step-by-step explanation:

Tn = a * r^ (n - 1)

T1 = a * r^ (1 - 1) = a * r^0 = a = 27

T2 = a * r^ (2 - 1) = a * r = 9 (equation 1)

To find the common ratio, put a as 27 in equation 1

27 * r = 9

r = 9/27 = 1/3