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A fair die is tossed eight times . The p...

A fair die is tossed eight times . The probability that a thrid six is oberved on the 8th throw is :

A

`(7C_(2) xx 5^(5))/(6^(7))`

B

`(7C_(2) xx 5^(5))/(6^(8))`

C

`(7C_(2) xx 5^(3))/(6^(6))`

D

none of these

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The correct Answer is:
B
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