A marble is randomly chosen from a can containing 3 red and 5 blue marbles

MATHEMATICS · Subjective · CBSE · Mathematics · Probability · Probability

Problem

A marble is randomly chosen from a can containing 3 red and 5 blue marbles. It is replaced by two marbles of the other colour. Another marble is then randomly chosen from the can. Given that the marbles chosen have the same colour, what is the probability that they are both blue?

Related theory

Browse the problem library