Home
Class 12
MATHS
A bag contains 5 white, 7 red and 8 blac...

A bag contains 5 white, 7 red and 8 black balls. If four balls are drawn one by one without replacement, find the probability of getting all white balls.

Text Solution

Verified by Experts

Solution:
Total number of balls in a bag = `5+7+8 = 20` balls
Probability that first ball is white = `5/20`
Probability that second ball is white = `4/19` (As the balls are drawn one by one without replacement)
...
Promotional Banner

Topper's Solved these Questions

  • MEAN VALUE THEOREMS

    RD SHARMA|Exercise Solved Examples And Exercises|110 Videos

  • RELATIONS

    RD SHARMA|Exercise Solved Examples And Exercises|197 Videos

Similar Questions

Explore conceptually related problems

A bag contains 5 white,7 red and 3 black balls.If three balls are drawn one by one without replacement,find the probability that none is red.

An urn contains 4 white 6 black and 8 red balls. If 3 balls are drawn one by one without replacement, find the probability of getting all white balls.

A bag contains 5 white,7 red and 4 black balls.If four balls are drawn one by one with replacement,what is the probability that none is white?

A bag contains 5 white 7 red and 8 black balls. If four balls are drawn one by one with replacement what is the probability that (i) none is the white (ii) all are white (ii) at least one is white ?

A bag contains 5 white; 7red and 4 black balls. If four balls are drawn one by one with replacement; what is the probability that none is white?

A bag contains 5 white,7 red and 8 black balls.Four balls are drawn one by one with replacement,what is the probability that at least one is white?

If a bag contains 4 white, 8 red and 8 black balls. Five balls are drawn one by one with replacement. Then the probability of at most four are white is

A box contains 4 red and 8 white balls. If 4 balls are drawn one by one with replacement then the probability of getting 3 white balls is

A bag contains 7 red,5 white and 8 black balls if four balls are drawn one buy one with replacement,what is the probability that None white? i1.All are white? iii.Any two are white?

RD SHARMA-PROBABILITY-Solved Examples And Exercises
  1. A bag contains 10 white and 15 black balls. Two balls are drawn in ...

    Text Solution

    |

  2. A bag contains 19 tickets, numbered from 1 to19. A ticket is drawn and...

    Text Solution

    |

  3. A bag contains 5 white, 7 red and 8 black balls. If four balls are ...

    Text Solution

    |

  4. Bag A contains 4 red and 5 black balls and bag B contains 3 red and 7 ...

    Text Solution

    |

  5. A bag contains 5 red marbles and 3 black marbles. Three marbles are ...

    Text Solution

    |

  6. Two cards are drawn from a well shuffled pack of 52 cards without r...

    Text Solution

    |

  7. Two cards are drawn without replacement from a well shuffled pack of 5...

    Text Solution

    |

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

    Text Solution

    |

  9. Cards are numbered 1 to 25. Two cards are drawn one after the other. ...

    Text Solution

    |

  10. Two dice are thrown together and the total score is noted. The event E...

    Text Solution

    |

  11. Find the minimum value of f(x)=pi^2/(16 cot^-1 (-x)) - cot^-1 x

    Text Solution

    |

  12. A bag contains 4 white and 2 black balls. Another contains 3 white and...

    Text Solution

    |

  13. A box contains 3 red and 5 blue balls. Two balls are drawn one by one ...

    Text Solution

    |

  14. Twelve balls are distributed among three boxes, find the probability ...

    Text Solution

    |

  15. What is the probability that four 'S' comes consecutively in the word ...

    Text Solution

    |

  16. A basket contains 20 apples and 10 oranges out of which 5 apples and 3...

    Text Solution

    |

  17. The probability that a person will get an electric contact is 2/5 and ...

    Text Solution

    |

  18. Let A ,B ,C be three events. If the probability of occurring exactly ...

    Text Solution

    |

  19. For the three events A, B and C, P(exactly one of the events A or B oc...

    Text Solution

    |

  20. The probabilities that a student passes in Mathematics,Physics and Che...

    Text Solution

    |