Question

What is the common ratio of this geometric sequence?
1|27
2|18
3|12
4|8
5|16/3
A. -9
B. 2/3
C. 3/2
D. 9

Answer 1

D.9

Answer 2

The answer can't be D, since the geometric sequence is decreasing.

Answer 3

Try multiplying each of the possible answers with one of the first four terms in the sequence. Whichever answer gives the next term is the correct answer.

Answer 4

yes it nine

Answer 5

\[27 * 9 \neq 18\]
\[18 * 9 \neq 12\]
\[12 * 9 \neq 8\]
\[8 * 9 \neq 16/3\]
The last term in the sequence is actually a clue. Why is it a fraction with a three on the bottom?

Answer 6

if wat ou say is true then it would have to be either 2/3 or 3/2

Answer 7

That's right, one of those two.