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For a person of age 50 years the probabi...

For a person of age 50 years the probability of his living upto 70 years is `(5)/(12)`. For a person of age 60 years the probability of his living upto 70 years `(2)/(7)`. The probability that atleast one of them to live upto 70 years is

A

`(35)/(84)`

B

`(45)/(84)`

C

`(49)/(84)`

D

`(54)/(84)`

Text Solution

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The correct Answer is:
C
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  9. From each of the three married couples one partner is selected at rand...

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  14. Bag A contain 4 white and 5 blank balls. Bag B contains 5 white and 6 ...

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  15. One compartment of a purse contains three 25 paise coins and 2 one rup...

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  16. A bag contains 4 white and 2 black balls. Another bag contains 3 white...

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  17. A,B,C are tossing a coin on the condition that the person who gets a h...

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  18. There are two bags one of which contains 3 black and 4 white balls, w...

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  19. There are two boxes. In the first box there are 4 white, 5 black balls...

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