A speaks the truth in 75% of cases and B in 80% of cases. In what percent of cases are they likely to contradict each other in narrating the same event?
Choose the correct choice from the following answers.
A) 0.225 B) 0.37 C) 0.32 D) 0.35 E) 0.55
Different possible cases of contradiction occurs when A speaks the truth and B does not speak the truth or A does not speak the truth and B speaks the truth.   (3/4 x 1/5) + (1/4 x 1/5) = 7/20 = 35%   = 0.35   ANSWER:0.35
<result>D</result>
A speaks the truth in 75% of cases and B in 80% of cases. In what percent of cases are they likely to contradict each other in narrating the same event?