The probability of drawing 4 white and 2 black balls in two drawings in succession from a bag containing 1 red,4 black and 6 white balls, if the drawing is without replacement

Find the chance of drawing 2 white balls in succession from a bag containing 5 red and 7 white balls,the ball first drawn not being replaced.

The probability of drawing 2 red balls in succession from a bag containing 4 red balls and 5 black balls when the ball that is drawn first is not replaced is

The probability of drawing a green coloured ball from a bag containing 6 red and 5 black balls is :

Find the probability of drawing a green coloured ball from a bag containing 6 red and 5 black balls.

A person draws out two balls successively from a bag containing 6 red and 4 white balls. The probability that at least one of them will be white is

A bag contains 3 red,4 white and 7 black balls.The probability of drawing a red or a black ball is

A bag contains 5 black and 3 red balls. A ball is taken out of the bag and is not returned to it. Then. (a) What is the probability of drawing a red ball in the second draw if the ball in the first draw is red ? (b) What is the probability of drawing a black ball in the second draw if the ball in the first draw is red ?

A bag constains white, black and red ball only. A ball is draw at random form the bage. If the probability of getting a white balls is (3)/(10) and that of a black ball is (2)/(5) then find the probability of getting a red ball. If the bag contains 20 black balls, find the total number of balls in the bag.