In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls will you have to pick up so that you have at least 4 balls of the same colour?
A box contains 4 blue, 3 red, 5 green and 6 yellow marbles. If three marbles are drawn at random, what is the probability that at least one is green?
A box contains 4 red balls, 6 green and 8 black balls. Three balls are drawn at random find the probability that three balls are of different color?
A bag contains 4 yellow, 5 red, 3 green and 4 black balls. If 4 balls are drawn randomly without replacement, what is the probability that the balls drawn contains balls of different colors?
A bag contains 5 green, 7 red and 4 white balls. If three balls are drawn one after the other with replacement, then what is the probability of getting balls of same colour?
A bag contain 5 blue and 4 black balls. Three balls are drawn at random. What is the probability that 2 are blue and 1 is black.
