Home
Class 12
MATHS
A box contains 4 white and 3 black balls...

A box contains `4` white and `3` black balls. Another box contains `3` white and `4` black balls. A die is thrown. If it exhibits a number greater than 3`, the ball is drawn from the first box. Otherwise, a ball is drawn from the second box. A ball drawn is found to be black. The probability that it has been drawn from the second box is

Promotional Banner

Similar Questions

Explore conceptually related problems

A box $X$ contains 2 white and 3 black balls and another bag Y contains 4 white and 2 black balls. One bag is selected at random and a ball is drawn from it. Then the probability for the ball chosen be white is

Box -I contains 6 red and 3 white balls while box -II contains 4 red and 3 white balls.A fair dice is thrown.If it turns up a multiple of 3.a ball is drawn from box-I else a ball is drawn from box II.Find the probability that the ball drawn is white.

A box contains 9 red, 7 white and 4 black balls. A bait is drawn at random from the bdx. probability that the ball drawn is (i) red

A box contains 9 red, 7 white and 4 black balls. A bait is drawn at random from the bdx. probability that the ball drawn is (ii) white or black

A box contains 3 blue, 2 white and 4 red balls. If A ball is drawn from the box what is the probability that the ball is not white.

A box contains 9 red, 7 white and 4 black balls. A bait is drawn at random from the bdx. probability that the ball drawn is (iii) not red

A box contains 6 white balls and 4 black balls, A ball is drawn at random from the box. What is the probability that the ball is white.

A box X contains 1 white ball, 3 red balls and 2 black balls. Another box Y contains 2 white balls, 3 red balls and 4 black balls. If one ball is drawn from each of the two boxes, then the probability the balls are of different colours is

A Box contains 5 white and 3 black ball. One ball is drawn and it is seen to be white. A second ball is drawn without returning the first ball. What is the probability that the second ball is also white?