JEE Math Practice Question
The sum of an infinite geometric series with positive terms is 3 and the sum of the cubes of its terms is $${{27} \over {19}}$$.Then the common ratio of this series is :
- A.$${4 \over 9}$$
- B.$${1 \over 3}$$
- C.$${2 \over 3}$$
- D.$${2 \over 9}$$
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