Question
In a hostel, 60% of the students read Hindi newspaper, 40% read English newspaper and 20% read both Hindi and English newspapers. A student is selected at random.
If she reads Hindi newspaper, find the probability that she reads English newspaper.
Solution
Let A and B be two events such that
A : a student reads Hindi newspaper
B : a student reads English newspaper.
P(she reads English newspaper when it is given that she reads Hindi newspaper) = P(B | A)
