What is the common ratio between successive terms in the sequence? 27 comma 9 comma 3 comma 1 comma 1 third comma 1 ninth comma 1 twenty-seventh comma dots
Answer
A
3
B
negative 1 third
C
negative 3
D
1 third
Explanation
Divide each term by the one before it to find the common ratio: 9 ÷ 27 = 1/3. The next pair gives the same result, 3 ÷ 9 = 1/3, so the common ratio is 1/3, choice B.
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