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The probability that a man lives after ...

The probability that a man lives after 10 years is `1/4` and that his wife is alive after 10 years is `1/3`. The probability that neither of them is alive after 10 years is :

A

`1/2`

B

`1/12`

C

`7/12`

D

`3/4`

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The correct Answer is:
A
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