Answer: 23/20.
Explanation:
given data:
probability that skene would be alive in 5years time = 3/4.
probablility that skene wife would also be alive in 5 years time = 2/5
SOLUTION:
The probability that both would be alive in 5years time.
= 3/4 + 2/5.
= 5*3 + 4*2 /20.
= 15 + 8 /20.
= 23/20.