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A man alternately tosses a coin and thro...

A man alternately tosses a coin and throws a die continuously . The probability of his getting a head on the coin before he gets 4 on the die is

A

`(1)/(2)`

B

`(6)/(7)`

C

`(3)/(4)`

D

`(2)/(3)`

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The correct Answer is:
B
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