Find the number of ways in which 5 red and 4 white balls can be drawn from a bag containing 10 red and 8 white balls.

Find the sample space 'S' and the sample points 'n(S)':A ball is drawn from a bag containing 3 red, 3 green and 4 white balls.

The number of ways in which a necklace can be formed by using 5 identical red beads and 6 identicalwhite beads is

Find the probability of getting both red balss, when from a bag containing 5 red and 4 black balls, two balls are drawn without replacement.

Find the number of ways of drawing 9 balls from a bag that has 6 red balls, 8 green balls, and 7 blue balls so that 3 balls of every colour are drawn.