Home
Class 12
MATHS
The number of ways of dividing 12 boys...

The number of ways of dividing 12 boys into 2 groups of 7,5 boys respectively is

A

`(8!)/(6!5!)`

B

`(9!)/(5!4!)`

C

`(10!)/(3!2!)`

D

`(12!)/(7!5!)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS & COMBINATIONS

    AAKASH SERIES|Exercise EXERCISE-II|229 Videos

  • PARTIAL FRACTIONS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|31 Videos

  • PROBABILITY

    AAKASH SERIES|Exercise Practise Exercise|165 Videos

Similar Questions

Explore conceptually related problems

The number of ways of dividing 10 books into 3 group of 5,3,2, books respectively is

The number of ways of dividing 15 cards into 3 groups of 5 cards each is

The number of ways of dividing 15 cards into 3 group of 5 cards each is

Find the number of ways of selecting 4 boys and 3 girls from a group of 8 boys and 5 girls.

The number of ways of arranging 8 boys and 8 girls in a row so that boys and girsl sit alternately is

Find the number of ways of arranging 5 boys and 5 girls around a circle.

Find the number of ways of giving away 4 similar coins to 5 boys if each boy can be given any member (less than or equal to 4) of coins.

Find the number of ways of arranging 5 boys and 5 girls around a circle ?

Find the number of ways of arranging 5 boys and 4 girls in a row, so that the row begins with a boy ends with a girl.

Find the number of ways of giving 6 similar coins among 4 boys if each boy can be given any number of coins.

AAKASH SERIES-PERMUTATIONS & COMBINATIONS-PRACTICE EXERCISE
  1. A set contains (2n+1) elements. If the number of subsets of this set w...

    Text Solution

    |

  2. In an election, no. of candidates is one more than the number of perso...

    Text Solution

    |

  3. The number of ways of dividing 12 boys into 2 groups of 7,5 boys r...

    Text Solution

    |

  4. The number of ways in which 12 books can be put in 3 shelves, 4 on eac...

    Text Solution

    |

  5. The number of ways of dividing 100 scouts into 3 squads of 50, 30, 20 ...

    Text Solution

    |

  6. The number of ways of dividing 15 cards into 3 groups of 5 cards each ...

    Text Solution

    |

  7. If the number of subsets with 8 elements from the set A={a(1),a(2),a(3...

    Text Solution

    |

  8. At an election three wards of a town of a are canvassed by ...

    Text Solution

    |

  9. Number of ways to give 16 different things to A, B, C so that B gets 1...

    Text Solution

    |

  10. The number of ways in which and examiner can assign 20 maks to...

    Text Solution

    |

  11. The number of ways in which 13 gold coins can be distributed ...

    Text Solution

    |

  12. IF there are 6 periods in each working day of a school , then ...

    Text Solution

    |

  13. The number of 5 digited numbers using all the digits 2, 4, 6, 8 is

    Text Solution

    |

  14. The number of 4 letter words can be formed from the letters of the wor...

    Text Solution

    |

  15. There are 12 boys to be seated on 2 benches , 6 on each lenc...

    Text Solution

    |

  16. Out of 7 consonants and 5 vowels how many different words can...

    Text Solution

    |

  17. From a company of 20 soldiers any 5 are placed on guard, each batch to...

    Text Solution

    |

  18. There are 7 Telugu books and 4 Hindi books. From those in how many way...

    Text Solution

    |

  19. A gentlemen invites a party of 10 guests to a dinner and places...

    Text Solution

    |

  20. The number of different seven digit number that can be written...

    Text Solution

    |