If the odds against of A whose age is 40 years will alive upto 60 years is 10:7 and for B whose age is 50 years will remain alive upto 70 years is 3 : 2. Find the probability that at least one of them will be alive for next 20 years.

The odds in favour of A whose age is 45 years will alive upto 60 years are 7:10 . The odds against of B whose age is 50 years, will alive upto 65 years are 3:2 . Find the probability that at least one will alive upto next 15 years.

The odds in favour of A whose age is 45 years will alive upto 60 years are 7:10 . The odds against of B whose age is 50 years, will alive upto 65 years are 3:2 . Find the probability that at least one will alive upto next 15 years.

Probability that a man who is 40 year old, living till 75 years is 5/16 , and another man who is 35 years old living till 70 years is 3/7 then what is the probability that at least one of them will be alive till 35 years hence?

It is 9 to 5 against a person who is 50 years living till he is 70 and 8 to 6 against a person who is 60 years living till he is 80. Find the probability that at least one of them will be alive after 20 years.

The odds against a husband who is 60 years old, living till he is 85 are 7:5 . The odds against his wife who is now 56, living till she is 81 are 5:3 . Find the probabilty that: at least one of them will be alive 25 years hence.

The probability that a man will be alive for 10 more years is 1/4 and the probability that his wife will alive for 10 more years is 1/3 . The probability that none of them will be alive for 10 more years, is

Supposing that it is 8 to 7 against a person who is now 30 years of age living till he is 60 and 2 to 1 against a person who is now 40 living till he is 70 , find the probability that at least one of these persons will be alive 30 years hence .