Home
Class 14
MATHS
20 girls, among whom are A and B sit dow...

20 girls, among whom are A and B sit down at a round table. The probability that there are 4 girls between A and B is:

A

`17/19`

B

`2/19`

C

`13/19`

D

`6/19`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    DISHA PUBLICATION|Exercise TEST YOURSELF|15 Videos

  • PROBABILITY

    DISHA PUBLICATION|Exercise PRACTICE EXERCISE (STANDARD LEVEL)|65 Videos

  • PERMUTATIONS AND COMBINATIONS

    DISHA PUBLICATION|Exercise TEST YOURSELF|15 Videos

  • PROFIT, LOSS AND DISCOUNT

    DISHA PUBLICATION|Exercise Test Yourself|15 Videos

Similar Questions

Explore conceptually related problems

Fifteen persons,among whom are A and B, sit down at random on a round table.The probability that there are 4 persons between A and B, is

Twenty persons among whom A and B, sit at random around a round table,then the probability that there are any 6 persons between A and B is

12 members of a committee are to sit down at random round a table. Probability that there are 3 members between the two particular members A and B, is

There are eight girls among whom two are sisters,all of them are t sit on a round table. Find the probability that the two sisters do not sit together.

There are n persons (n ge 3) , among whom are A and B, who are made to stand in a row in random order. Probability that there is exactly one person between A and B is

When 5 boys and 5 girls sit around a table the probability that no two girls come together

There are n persons (n>=3), among whom are A and B, who are made to stand in a row in random order.Probability that there is exactly one person between A and B is

When 5 -boys and 5 -girls sit around a table the probability that no two girls come together

4 gentlemen and 4 ladies take seats at random round a table. The probability that they are sitting alternately is

10 gentlemen and 6 ladies are to sit for a dinner at a round table.The probability that no two ladies sit together is

DISHA PUBLICATION-PROBABILITY-PRACTICE EXERCISE (EXPERT LEVEL)
  1. If M and N are any two events, then the probability that exactly one o...

    Text Solution

    |

  2. It is known that at noon at a certain place the sun is hidden by cloud...

    Text Solution

    |

  3. A, B, C in order, cut a pack of cards, replacing them after each cut, ...

    Text Solution

    |

  4. What is the probability that any two different cards of a well-shuffle...

    Text Solution

    |

  5. Three integers are chosen at random from the first 20 integers. The pr...

    Text Solution

    |

  6. The probability that two integers chosen at random and their product w...

    Text Solution

    |

  7. The probability that the birth days of six different persons will fall...

    Text Solution

    |

  8. A book has 999 pages. If a page is opened at random the probability th...

    Text Solution

    |

  9. Two integers x and y are chosen with replacement out of the set {0, 1,...

    Text Solution

    |

  10. The quadratic equation ax^(2)+bx+c=0 has real roots if:

    Text Solution

    |

  11. Four whole numbers taken at random are multiplied together. What is th...

    Text Solution

    |

  12. A die is thrown 7 times. The chance that an odd number turns up at lea...

    Text Solution

    |

  13. A letter is takenout at random from 'ASSISTANT and another is taken ou...

    Text Solution

    |

  14. A box contains 3 white and 2 red balls. If first drawing ball is not r...

    Text Solution

    |

  15. An event X can happen with probability P, and event Y can happen with ...

    Text Solution

    |

  16. In a bombing of the Nathula pass, the Indian troops have to destroy a ...

    Text Solution

    |

  17. 20 girls, among whom are A and B sit down at a round table. The probab...

    Text Solution

    |

  18. Two integers x and y are chosen with replacement out of the set {0, 1,...

    Text Solution

    |

  19. a consignment of 15 record players contain 4 defectives .the record pl...

    Text Solution

    |

  20. A letter is takenout at random from 'ASSISTANT and another is taken ou...

    Text Solution

    |