The terms of an infinitely decreasing G....

The terms of an infinitely decreasing G.P. in which all the terms are positive, the first term is 4, and the difference between the third and fifth term is `(32)/(81)` , then which of the following is not true

A

r=1/3

B

`r=2 sqrt(2//3)`

C

`S_(oo) =6`

D

None of these

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The correct Answer is:

D

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