The probability that a man will live 10 more years is ¼ and the probability that his wife will l ive 10 more years is 1/3

The probability that a man will live 10 more years is ¼ and the probability that his wife will l ive 10 more years is 1/3. The probability that neither of them will be alive in 10 years is?

a) 5/12

b) 1/2

c)  7/12

d) 11/12

Sol: