The probability that a man will be alive in 20 years is \[\frac{3}{5}\] and the probability that his wife will be alive in 20 years is \[\frac{2}{3}\]. Then the probability that at least one will be alive in 20 years, is [Bihar CEE 1994]

The probability that a man will be alive in 20 years is \[\frac{3}{5}\

1.	The probability that a man will be alive in 20 years is \[\frac{3}{5}\] and the probability that his wife will be alive in 20 years is \[\frac{2}{3}\]. Then the probability that at least one will be alive in 20 years, is [Bihar CEE 1994]
A.	\[\frac{13}{15}\]
B.	\[\frac{7}{15}\]
C.	\[\frac{4}{15}\]
D.	None of these
Answer» B. \[\frac{7}{15}\]

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The probability that a man will be alive in 20 years is \[\frac{3}{5}\] and the probability that his wife will be alive in 20 years is \[\frac{2}{3}\]. Then the probability that at least one will be alive in 20 years, is [Bihar CEE 1994]

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