Question

solve with solution..​

Answer 1

Answer:

hence your answer is 7/20

Step-by-step explanation:

the probablity that A speak truth = 4/5

the probablity that A don't speak truth = 1/5

the probablity that B speak truth = 3/4

the probablity that B don't speak truth = 1/4

probablity when they contradict each other =

P(A)*P(B') + P(A')*P(B)

= 4/5*1/4 + 3/4*1/5

= 4/20 + 3/20

= 7/20