If P(A) = 3/5 and P (B) = 1/5, find P (A ∩ B) if A and B are independent events.

If P (A) = 1/2, P(B) = 0, then P (A|B) is

If A and B are events such that P(A|B) = P(B|A), then

Two cards are drawn at random and without replacement from a pack of 52 playing cards. Find the probability that both the cards are black.

A box of oranges is inspected by examining three randomly selected oranges drawn without replacement. If all the three oranges are good, the box is approved for sale, otherwise, it is rejected. Find the probability that a box containing 15 oranges out of which 12 are good and 3 are bad ones will be approved for sale.