Home
Class 12
MATHS
Coloured balls are distributed in four b...

Coloured balls are distributed in four boxes as shown in the following table :

A box is selected at random and then a ball is randomly drawn from the selected box. The colour of the ball is black, what is the probability that ball drawn is from the box III ?

Text Solution

Verified by Experts

The correct Answer is:
0.165
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    KUMAR PRAKASHAN|Exercise Solutions of NCERT Exemplar Problems (Short Answer Type Questions) |40 Videos

  • PROBABILITY

    KUMAR PRAKASHAN|Exercise Solutions of NCERT Exemplar Problems (Long Answer Type Questions) |16 Videos

  • PROBABILITY

    KUMAR PRAKASHAN|Exercise MISCELLANEOUS EXERCISE 13 |20 Videos

  • MATRICES

    KUMAR PRAKASHAN|Exercise Practice Paper - 3 (Section - D)|1 Videos

  • RELATIONS AND FUNCTIONS

    KUMAR PRAKASHAN|Exercise Practice Paper - 1 (Section - D)|2 Videos

Similar Questions

Explore conceptually related problems

Numbers of balls in three boxes are as follows. One box is selected of random and two balls are drawn which are of red colour and white colour each. What is the probability that selected ball is of from box 1 ?

Let n_1, and n_2 , be the number of red and black balls, respectively, in box I. Let n_3 and n_4 ,be the number one red and b of red and black balls, respectively, in box II. One of the two boxes, box I and box II, was selected at random and a ball was drawn randomly out of this box. The ball was found to be red. If the probablity that this red ball was drawn from box II is 1/3 then the correct option(s) with the possible values of n_1, n_2, n_3, and n_4 , is(are)

Suppose we have four boxes A, B, C and D containing coloured marbles as given below : One of the boxes has been selected at random and a single marble is drawn from it. If the marble is red, what is the probability that it was drawn from box A?, box B ?, box C ?

An urn contains 10 black and 5 white balls. Two balls are drawn from the urn one after the other without replacement. What is the probability that both drawn balls are black ?

A bag contains 4 red and 4 black balls, another bag contains 2 red and 6 black balls. One of the two bags is selected at random and a ball is drawn from the bag which is found to be red. Find the probability that the ball is drawn from the first bag.

Given that the drawn ball from U2 is white, the probability that head appeared on the coin

Three bags contain a number of red and white balls as follows: If a white ball is selected, what is the probability that it came from (i) Bag II (ii) Bag III.

KUMAR PRAKASHAN-PROBABILITY-Textbook Illustrations for Practice Work
  1. Suppose that the reliability of a HIV test is specified as follows: ...

    Text Solution

    |

  2. In a factory which manufactures bolts, machines A, B and C manufacture...

    Text Solution

    |

  3. A doctor is to visit a patient. From the past experience, it is known ...

    Text Solution

    |

  4. A man is known to speak truth 3 out of 4 times. He throws a die and r...

    Text Solution

    |

  5. A person plays a game of tossing a coin thrice. For each head, he is ...

    Text Solution

    |

  6. A bag contains 2 white and 1 red balls. One ball is drawn at random an...

    Text Solution

    |

  7. Two cards are drawn successively with replacement from a well-shuffled...

    Text Solution

    |

  8. Find the probability distribution of number of doublets in three throw...

    Text Solution

    |

  9. Let X denote the number of hours you study during a randomly selected...

    Text Solution

    |

  10. Let a pair of dice be thrown and the random variable X be the sum of t...

    Text Solution

    |

  11. Find the variance of the number obtained on a throw of an unbiased die...

    Text Solution

    |

  12. Two cards are drawn simultaneously (or successively without replacemen...

    Text Solution

    |

  13. Six balls are drawn successively from an urn containing 7 red and 9 bl...

    Text Solution

    |

  14. If a fair coin is tossed 10 times, find the probability of (i) exac...

    Text Solution

    |

  15. Ten eggs are drawn successively with replacement from a lot containing...

    Text Solution

    |

  16. Coloured balls are distributed in four boxes as shown in the following...

    Text Solution

    |

  17. Find the mean of the Binomial distribution B(4, (1)/(3))

    Text Solution

    |

  18. The probability of a shooter hitting a target is (3)/(4). How many min...

    Text Solution

    |

  19. A and B throw a die alternatively till one of them gets a '6' and wins...

    Text Solution

    |

  20. If a machine is correctly set up, it produces 90% acceptable items. If...

    Text Solution

    |