Home
Class 12
MATHS
20 persons are invited for a party ....

20 persons are invited for a party . The different number of ways in which they can be seated on a circular table with particular persons seated on either side of the host is

A

`20!`

B

`2!19!`

C

`2!18!`

D

`18!`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS & COMBINATIONS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|163 Videos
  • PERMUTATIONS & COMBINATIONS

    AAKASH SERIES|Exercise EXERCISE-I|60 Videos
  • PARTIAL FRACTIONS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|31 Videos
  • PROBABILITY

    AAKASH SERIES|Exercise Practise Exercise|165 Videos

Similar Questions

Explore conceptually related problems

20 persons were invited for a party . The number of ways that they can be arranged in a circle with the host is

The number of ways in which 7 persons can sit around a rouund table is

The number of ways in which 8 men be arranged round a table so that 2 particular men may not be next to each other is

Find the number of ways of arranging 7 guests and a host around a circle if 2 particular guests wish to sit on either side of the host.

The number of ways in which 4 boys and 4 girls may be seated around a circular table so that there is one between every two girls is

The number of ways in which 5 boy and 4 girls sit around a circular table so that no two girls sit together is

The number of ways in which 5 boys and 4 girls sit around a circular table, so that all girls sit together

Total number of ways in which “2n' persons can be divided into ‘n’ couples is

The number of ways in which n books can be arranged so that two particular books are not together is

AAKASH SERIES-PERMUTATIONS & COMBINATIONS-EXERCISE-II
  1. The number of ways of arranging 9 persons around a circle if there are...

    Text Solution

    |

  2. The number of ways in which 6 gentlemen and 3 ladies be seated round a...

    Text Solution

    |

  3. 20 persons are invited for a party . The different number of wa...

    Text Solution

    |

  4. The number of ways in which 7 red roses and 4 white roses of different...

    Text Solution

    |

  5. Garlands are formed using 6 red roses and 6 yellow roses of different ...

    Text Solution

    |

  6. The number of ways in which n things of which r are alike, can be arra...

    Text Solution

    |

  7. There are n white and n black balls market 1,2,3 . . . N the ...

    Text Solution

    |

  8. The number of ways that the Chief minister and the 14 ministers ...

    Text Solution

    |

  9. If the letters of the word SACHIN are arranged in all possible ways an...

    Text Solution

    |

  10. The letters of the word 'VICTORY' are arranged in all possible ways, a...

    Text Solution

    |

  11. The letters of the word LABOUR are permuted in all possible ways and t...

    Text Solution

    |

  12. If the letters of the word 'NAAGI' are arranged as in a dictionary the...

    Text Solution

    |

  13. If all permutations of the letters of the word AGAIN are arran...

    Text Solution

    |

  14. If the letters of the word 'PAPER' are arranged as in a dictionary the...

    Text Solution

    |

  15. All the numbers that can be formed using all the digits at a time from...

    Text Solution

    |

  16. All the numbers that can be formed using 1, 2, 3, 4, 5 are arranged in...

    Text Solution

    |

  17. Four digit numbers formed with 1, 2, 4, 6, 8 without repetition are fo...

    Text Solution

    |

  18. The sum of the digits in the unit place of all the numbers formed with...

    Text Solution

    |

  19. The sum of the numbers formed by taking all the digits at a time from ...

    Text Solution

    |

  20. Sum of four digit numbers formed with 2,3,4,5 using each digit any num...

    Text Solution

    |