A box contains 2 blue, 3 green and 5 red balls. If three balls are drawn at random, what is the probability that all balls are different in color?

Q. A bag contains 10 balls. 2 red, 3 blue and 5 black. Three are drawn at random. The probability that the three balls are of different colours is

Q.

A box contains 10 red marbles, 20 blue marbles and 30 green marbles. 5 marbles are drawn at random. From the box, what is the probability that :

(i) all are blue?

(ii) at least one is green?

Q. A box contains 4 Green, 5 Blue and 3 Red balls. A ball is drawn at random. Find the probability that the selected ball is
(i) Red in colour (ii) not Green in colour.

Q. A bag contains 3 red, 4 white and 5 blue balls (All balls are different). If two balls are drawn at random, then the probability that they are of different colours is:

Q. A box contains $5$ green, $4$ yellow and $3$ white marbles. three marbles are drawn at random. What is the probability that all they are not of the same colour?