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A fair die is tossed repeated until a si...

A fair die is tossed repeated until a six is obtained. Let X denote the number of tosses required.
The probability that `X ge 3` is

A

`(125)/(216)`

B

`(25)/(36)`

C

`(5)/(36)`

D

`(25)/(216)`

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The correct Answer is:
B
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