The probability that a man will be alive for 10more yrs is 1/4 & the probability that his wife will alive for 10 more yrs is 1/3. The probability that none of them will be alive for 10 more yrs, is  Answers
A) 1 B) 1/2 C) 2/3 D) 3/5 E) 4/7
Sol. Required probability = Pg.) x P(1/2) = (1— D x(1 —I) =: x 1=1/2   Ans.(1/2)
<result>B</result>
The probability that a man will be alive for 10more yrs is 1/4 & the probability that his wife will alive for 10 more yrs is 1/3. The probability that none of them will be alive for 10 more yrs, is