Two brother X and Y appeared for an exam. Let A be the event that X is selected and B is the event that Y is selected. The probability of A is .JPG)
and that of B is 
. Find the probability that both of them are selected.
Two brother X and Y appeared for an exam. Let A be the event that X is selected and B is the event that Y is selected. The probability of A is and that of B is . Find the probability that both of them are selected.