# probablity

1a box contains 50uniform balls of which 35 are white and 15 are red in color. Three balls are drawn in succession 9whithout replacement) from the box.
What is the probability getting
At least two white balls.
White balls in the 1st and 3rd draws.
Red balls in the at last two draws
What is the probability of not getting the same color ball in succession n draws?