The probability that A speaks truth is 4/5 and that of B speaking truth is 3/4. What is the probability that they agree in stating the same fact? Choose the correct choice from the following answers:
A) 18/35
B) 12/35
C) 9/10
D) 19/35
E) None of these
If both agree stating the same fact, either both of them speak truth of both speak false.   Probability = 4/5 * 3/4 + 3/5 * 2/4   = 12/20 + 6/20 = 18/20 = 9/10   ANSWER:9/10
<result>C</result>
The probability that A speaks truth is 4/5 and that of B speaking truth is 3/4. What is the probability that they agree in stating the same fact?