A fair die is tossed until six is obtained on it. Let x be the number of required tosses, then the conditional probability P(x $\ge$ 5

Question

A fair die is tossed until six is obtained on it. Let x be the number of required tosses, then the conditional probability P(x $\ge$ 5 | x > 2) is :

${{125} \over {216}}$

${{11} \over {36}}$

${{5} \over {6}}$

${{25} \over {36}}$

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