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A bag A contains 5 white and 6 black bal...

A bag A contains 5 white and 6 black balls. Another bag B contains 4 white and 3 black balls. A ball is transferred from bag A to the bag B and then a ball is taken out of the second bag. Find the probability of this ball being black.

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RD SHARMA ENGLISH-PROBABILITY-All Questions
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  16. Suppose a girl throws a die. If she gets a 5 or 6, she tosses a coin ...

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  17. Given three identical boxes I, II and III, each containing two coins. ...

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