There are two identical boxes containing 5 white and 3 red balls- and 4 white and 6 red balls- A box is chosen random and a ball is drawn from it- If the ball is white what is the probability that it is from -i- The second box- -ii- The frist box-

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There are two identical boxes containing 5 white and 3 red balls, and 4 white and 6 red balls. A box is chosen at random and a ball is drawn from it. If the ball is white what is the probability that it is from (i) The second box, (ii) The frist box?

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Similar Questions

There are 3 boxes, the first one containing 1 white, 2 red and 3 black balls; the second one containing 2 white, 3 red and 1 black ball and the third one containing 3 white, 1 red and 2 black balls. A box is chosen at random and from it two balls are drawn at random. One ball is red and the other, white. What is the probability that they come from the second box?

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Box I contains

2

white and

3

red balls and box II contains

4

white and

5

red balls. One ball is drawn at random from one of the boxes and is found to be red. Then, the probability that it was from box II, is?

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Box-I contains

5

red and

4

white balls while box-II contains

4

red and

2

white balls. A fair die 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. The probability that the ball drawn is white is

\frac{a}{27}

. Find

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A box

B_{1}

contains

1

white ball,

3

red balls and

2

black balls. Another box

B_{2}

contains

2

white balls,

3

red balls and

4

black balls. A third box

B_{3}

contains

3

white balls,

4

red balls and

5

black balls. If

2

balls are drawn (without replacement) from a randomly selected box and one of the balls is white and the other ball is red, the probability that these two balls are drawn from box

B_{2}

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A box

^{'} A^{'}

contains

2

white,

3

red and

2

black balls. Another box

^{'} B^{'}

contains

4

white,

2

red and

3

black balls. If two balls are drawn at random, without replacement, from a randomly selected box and one ball turns out to be white while the other ball turns out to be red, then the probability that both balls are drawn from box

^{'} B^{'}

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