$A$ bag contains $6$ red,$4$ white,and $8$ blue balls. If three balls are drawn at random,then the probability that $2$ are white and $1$ is red is:

$A$ company representative is distributing $5$ identical samples of a product among $12$ houses in a row such that each house gets at most one sample. The probability that no two consecutive houses get one sample is

An urn contains $9$ balls of which $3$ are red,$4$ are blue and $2$ are green. Three balls are drawn at random from the urn. The probability that the three balls have different colours is

$A$ bag contains $6$ white and $4$ black balls. Two balls are drawn at random. The probability that they are of the same colour is . . . . . .

If three dice are thrown,then the probability that the sum of the numbers on the uppermost faces is at least $5$ is:

Out of $40$ consecutive natural numbers,two are chosen at random. The probability that the sum of the numbers is odd is: