The probability that A speaks truth is 4/5 and that of B speaking truth is 4/7. What is the probability that they agree in stating the same fact?  Options:
A) 18/35
B) 19/35
C) 19/36
D) 18/33
E) 18/32
If both agree stating the same fact, either both of them speak truth of both speak false.   Probability = 4/5 * 4/7 + 1/5 * 3/7   = 16/35 + 3/35 = 19/35   Answer: 19/35
<result>B</result>
The probability that A speaks truth is 4/5 and that of B speaking truth is 4/7. What is the probability that they agree in stating the same fact?