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Two balls are drawn at random with repla...

Two balls are drawn at random with replacement from a box containing 10 black and 8 red balls. Find the probability that first ball is black and second is red.

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MODERN PUBLICATION-PROBABILITY-EXERCISE
  1. A die is thrown. If E is the event ‘the number appearing is a multiple...

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  2. Two balls are drawn at random with replacement from a box containing 1...

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  3. Two balls are drawn at random with replacement from a box containing 1...

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  4. Two balls are drawn at random with replacement from a box containing 1...

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  5. An urn contains 10 black and 5 white balls. Two balls are drawn from t...

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  6. A bag contains 5 white and 3 black balls. Four balls are successively ...

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  7. A bag contains 4 red and 3 black balls. A second bag contains 2 red an...

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  8. Three cards are drawn successively, without replacement from a pack of...

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  9. A bag A contains 6 white and 7 black balls while the other bag B conta...

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  10. There are three urns A,B and C . Urn A contains 4 white balls and 5 bl...

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  11. A speaks truth in 70% of the cases and B in 80% of the cases. In what ...

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  12. A speaks truth in 75% of cases and B in 80% of cases. The percentage o...

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  13. A and B toss a coin alternately till one of them tosses a head and win...

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  14. A and B throw a die alternatively till one of them gets a ‘6’ and wins...

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  15. A and B throw a die alternatively till one of them gets a ‘6’ and wins...

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  16. A and B throw a pair of dice alternately, till one of them gets a tota...

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  17. A, B and C in tum throw a die and one who gets a 6 first wins the game...

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  18. A, B and C in tum throw a die and one who gets a 6 first wins the game...

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  19. Three ships A, B, C sail from England to India. Odds in favour of thei...

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  20. A husband and his wife appear for an interview for two parts. The prob...

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