An urn contains 5 red marbels,4 black marbels and 3 white marbles. Then the number of ways in which 4 marbles can be drawn so that most three them are red is _________

An urn contains 5 red marbels,4 black marbels and 3 white marbles. Then the number of ways in which 4 marbles can be drawn so that at most three of them are red is _________

A bag contains 6 white marbles and 5 red marbles. Find the number of ways in which four marbles can be drawn form the bag if 2 must be white and 2 red.

A bag contains 6 white marbles and 5 red marbles. Find the number of ways in which four marbles can be drawn form the bag if they must all be the same colour.

A bag contains 6 white marbles and 5 red marbles. Find the number of ways in which four marbles can be drawn form the bag if they can be of any colour.

A big contains six white marbles and five red marbles. Find the number of ways in which four marbles can be drawn from the bag. If (i) they can be of any colour. (ii) two must be white and two red. (iii) they must all be of the same colour.

A big contains six white marbles and five red marbles. Find the number of ways in which four marbles can be drawn from the bag. If (i) they can be of any colour. (ii) two must be white and two red. (iii) they must all be of the same colour.

A bag contains 2 white marbles, 4 blue marbles and 6 red marbles. Three marbles are drawn from the bag . What is the probability that none is black ?

A bag contains 2 white marbles , 4 blue marbels , and 6 red marbles . A marble is drawn at random from the bag . What is the probability that it is red ?