Question

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

27, 9, 3, 1,1/3 , 1/9, 1/27, ...


A. –3

B. –1/3



C. 1/3

D. 3

Answer 1

the are asking
what do you multiply 27 by to get 9?
27 * x = 9
where x is the unknown number
if you divide both sides by 27 you get
x= 9/27
you can simplify that fraction to get the answer.

Answer 2

or what do you multiply 9 by to get 3?
or what do you multiply 3 by to get 1 ?

Answer 3

3 right? @phi

Answer 4

are you saying
27*3 = 9 ?

Answer 5

common ratio of a geometric series r, the ratio of (n+1)/n term

Answer 6

every term divided by the previous term should give you the same number as the common ratio

Answer 7

9 / 27

3 / 9

1/3

.....

Answer 8

all successive have common ratio r = 1/3

Answer 9

thank you @DanJS

Answer 10

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