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A bag X contains 3 white and 2 black bal...

A bag X contains 3 white and 2 black balls; another bag Y contains 2 white and 4 black balls. A bag and a ball out of it is picked at random. What is the probability that the ball is white?

A

`(2)/(7)`

B

`(7)/(9)`

C

`(4)/(15)`

D

`(7)/(15)`

Text Solution

Verified by Experts

The correct Answer is:
(d)
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Knowledge Check

  • A bag A contains 3 white and 2 black balls and another bag B contains 2 white and 4 black balls. From a bag a ball is picked at random. The probability that the ball is black, is

    A
    `2/7`
    B
    `7/9`
    C
    `4/15`
    D
    `8/15`

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    A
    `(5)/(24)`
    B
    `(13)/(24)`
    C
    `(1)/(4)`
    D
    `(2)/(3)`

  • A bag contians 4 white and 2 black balls and another bag contain 3 white and 5 black balls. If one ball is drawn from each bag, then the probability that one ball is white and one ball is black is

    A
    `(5)/(24)`
    B
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    C
    `(1)/(4)`
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