Home
Class 12
MATHS
Let U(1) and U(2) be two urns such that ...

Let `U_(1) and U_(2)` be two urns such that `U_(1)` contains 3 white and 2 red balls, and `U_(2)` contains only 1 white ball. A fair coin is tossed. If head appears, than 1 ball is drawn at random for `Us_(1)` and put into `U_(2),` However, if tail appears, then 2 balls are drawn at random from `U_(1)` and put into `U_(2).` Now 1 ball is drawn at random from `U_(2)`
The probability of the drawn ball from `U_(2)` being white is

A

`(13)/(30)`

B

`(23)/(30)`

C

`(19)/(30)`

D

`(11)/(30)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    ARIHANT MATHS ENGLISH|Exercise Exercise (Subjective Type Questions)|15 Videos
  • PERMUTATIONS AND COMBINATIONS

    ARIHANT MATHS ENGLISH|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|28 Videos
  • PRODUCT OF VECTORS

    ARIHANT MATHS ENGLISH|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|51 Videos

Similar Questions

Explore conceptually related problems

Let U_1 , and U_2 , be two urns such that U_1 , contains 3 white and 2 red balls, and U_2, contains only 1 white ball. A fair coin is tossed. If head appears then 1 ball is drawn at random from U_1 , and put into U_2, . However, if tail appears then 2 balls are drawn at random from U_1, and put into U_2 . . Now 1 ball is drawn at random from U_2, .61 . The probability of the drawn ball from U_2, being white is

Let U_1 , and U_2 , be two urns such that U_1 , contains 3 white and 2 red balls, and U_2, contains only 1 white ball. A fair coin is tossed. If head appears then 1 ball is drawn at random from U_1 , and put into U_2, . However, if tail appears then 2 balls are drawn at random from U_1, and put into U_2 . . Now 1 ball is drawn at random from U_2, .61 . The probability of the drawn ball from U_2, being white is

Let U1 and U2 be two urns such that U1 contains 3 white and 2 red balls, and U2 contains only 1 white ball. A fair coin is tossed. If head appears then 1 ball is drawn at random from U1 and put into U2. However, if tail appears then 2 balls are drawn at random from U1 and put into U2. Now 1 ball is drawn at random from U2. Given that the drawn ball from U2 is white, the probability that head appeared on the coin is

A bag contains 8 red, 6 white and 4 black balls. A ball is drawn at random from the bag. Find the probability that the drawn ball is (i) red or white (ii) not black

An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

A bag A contains 2 white and 3 red balls and a bag B contains 4 white and 5 red and balls. One ball is drawn at random from one of the bags and is found to be red. Find the probability that it was drawn as red.

A bag contains 9 red and 12 white balls one ball is drawn at random. Find the probability that the ball drawn is red.

A bag contains 4 red, 6 black and 5 white balls, A ball is drawn at random from the bag. Find the probability that the ball drawn is: white

A bag contains 4 red, 6 black and 5 white balls, A ball is drawn at random from the bag. Find the probability that the ball drawn is: not black

A bag contains 5 white and 7 red balls. One ball is drawn at random. What is the probability that ball drawn is white?

ARIHANT MATHS ENGLISH-PROBABILITY-Exercise (Questions Asked In Previous 13 Years Exam)
  1. Four numbers are chosen at random (without replacement) from the set ...

    Text Solution

    |

  2. An urn contains nine balls of which three are red, four are blue and ...

    Text Solution

    |

  3. Let U(1) and U(2) be two urns such that U(1) contains 3 white and 2 re...

    Text Solution

    |

  4. Let U1 and U2 be two urns such that U1 contains 3 white and 2 red ball...

    Text Solution

    |

  5. Let E and F be two independent events. The probability that exactly on...

    Text Solution

    |

  6. Consider 5 independent Bernoulli's trials each with probability of at ...

    Text Solution

    |

  7. If C and D are two events such that CsubD""a n d""P(D)!=0 , then the c...

    Text Solution

    |

  8. Let A, B, C be pariwise independent events with P(C) >0 and P(AnnBnnC)...

    Text Solution

    |

  9. A ship is fitted with three engines E1,E2 and E3. The engines function...

    Text Solution

    |

  10. four fair dice D1, D2,D3 and D4 each having six faces numbered 1,2,3,4...

    Text Solution

    |

  11. If X and Y are two events such that PX//Y)=(1)/(2), P(Y//X)=(1)/(3) an...

    Text Solution

    |

  12. Three numbers are chosen at random without replacement from {1,2,3,......

    Text Solution

    |

  13. A multiple choice examination has 5 questions. Each question has three...

    Text Solution

    |

  14. Four person independently solve a certain problem correctly with pr...

    Text Solution

    |

  15. Of the three independent events E(1),E(2),and E(3), the probability th...

    Text Solution

    |

  16. A box B(1) contains 1 white ball, 3 red balls, and 2 black balls. An- ...

    Text Solution

    |

  17. A box B1 contains 1 white ball, 3 red balls and 2 black balls. Another...

    Text Solution

    |

  18. Let A and B be two events, such that P(bar(A cup B))=(1)/(6), P(A cap ...

    Text Solution

    |

  19. Three boys and two girls stand in a queue. The probability, that the n...

    Text Solution

    |

  20. Box 1 contains three cards bearing numbers 1, 2, 3; box 2 contains fiv...

    Text Solution

    |