Probability · JEE Main previous year questions

2004 1 question

1. Q352004 · 24 Apr 2004 · Shift 1

   The probability that $A$ speaks truth is $\frac{4}{5}$, while the probability for $B$ is $\frac{3}{4}$. The probability that they contradict each other when asked to speak on a fact is :

   1. A.$\frac{4}{5}$
   2. B.$\frac{1}{5}$
   3. C.$\frac{7}{20}$
   4. D.$\frac{3}{20}$
   Show answer

   Answer: C