Question

Tom speaks truth in 30% cases and Harry speaks truth in 25% cases. what is the probability that they would contradict each other?

Answer 1

11/20...

30/100=3/10

25/100=1/4

3/10+1/4=11/20

please make me as brailest...

Answer 2

Answer:

GIVEN,

P(T) = 30/100 P(D) = 25/100

P(T') = 1 - 30/100 = 70/100

P(D') = 1 - 25/100 = 75/100

the probability of T and D contradict each other,

[ P(T) × P(D') + P(T') × P(D) ]

= 30/100 × 75/100 + 70/100 × 25/100

= 2250/10000 + 1750/10000

= 0.225 + 0 175

= 0.400