Hi I am not getting the logic of this problem.
A bag contains 4 red marbles and 1 black marble. Two persons, A & B, take turns drawing a marble from the bag without replacement. The first person to draw a black marble wins. What is the probability that person A, who draws first wins?
The answer is 3/5 according to the text. But how do you arrive at this answer?
A bag contains 4 red marbles and 1 black marble. Two persons, A & B, take turns drawing a marble from the bag without replacement. The first person to draw a black marble wins. What is the probability that person A, who draws first wins?
The answer is 3/5 according to the text. But how do you arrive at this answer?
