Home
Class 14
MATHS
Priyanka has 11 different toys and su...

Priyanka has 11 different toys and supriya has 8 different roys . Find the number of ways in which they can exchange their toys so that each keeps her initial number of toys .

A

`"^(19)C_(11)`

B

`"^(18)C_(10)`

C

`"^(20)C_(11)`

D

`"^(19)C_(11) -1`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PERCENTAGES

    QUANTUM CAT|Exercise QUESTION BANK|271 Videos

  • PROBABILITY

    QUANTUM CAT|Exercise QUESTION BANK|206 Videos

Similar Questions

Explore conceptually related problems

There are two bosy B_(1) and B_(2) . B_(1) and n_(1) different toys and B_(2) and n_(2) different toys. Find the number of ways in which B_(1) and B_(2) can exchange their toys in such a way that after exchanging they still have same number of toys but not the same set.

A has 3 maps and B has 9 maps.All the 12 maps being distinct.Determine the number of ways in which they can exchange their maps if each keeps his initial number of maps.

Find the number of ways in which 12 different beads can be arranged to form a necklace.

Find the number of ways, in which 12 different beads can be arranged to form a necklace.

A rack has 5 different pairs of shoes.The number of ways in which 4 shoes can be chosen from it so that there will be no complete pair is

There are p copies each of n different books. Find the number of ways in which a nonempty selection can be made from them.

Find the number of ways in which 10 different diamonds can be arranged to make a necklace.

n different toys have to be distributed among n children.Find the number of ways in which these toys can be distributed so that exactly one child gets no toy.

n different toys have to be distributed among n children.Find the number of ways in which these toys can be distributed so that exactly one child gets no toy.

Find the number of ways in which 8 distinct toys can be distributed among 5 children.

QUANTUM CAT-PERMUTATIONS & COMBINATIONS-QUESTION BANK
  1. 2m people are arranged along two sides of a long table with m chairs e...

    Text Solution

    |

  2. Management city has m parallel roads running East-West and n parallel ...

    Text Solution

    |

  3. Priyanka has 11 different toys and supriya has 8 different roys ...

    Text Solution

    |

  4. The sum of the numbers of the n^(th) term of the series (1) +(1...

    Text Solution

    |

  5. Two packs of 52 playing crds are shuffled together . The number of way...

    Text Solution

    |

  6. In how many ways we can select four cards of different suits and diffe...

    Text Solution

    |

  7. How many 5 digit numbers can be formed having the digits 0 three times...

    Text Solution

    |

  8. How many different four digit numbers can be formed with the digits 1,...

    Text Solution

    |

  9. How many different four digit numbers can be formed using digits 1, 2,...

    Text Solution

    |

  10. How many different eight digit numbers can be formed using only four d...

    Text Solution

    |

  11. In how many ways can 8 distinct things be divided among three people s...

    Text Solution

    |

  12. There are 6 numbered chairs placed around a circular table. 3 boys and...

    Text Solution

    |

  13. In how how many ways one black and one white rook can be placed on a c...

    Text Solution

    |

  14. There are 9 pairs of white shoes and 6 pairs of black shoes contained ...

    Text Solution

    |

  15. In the previous question, minimum how many shoes must be drawn out to ...

    Text Solution

    |

  16. There are four different coloured balls and four boxes of the same col...

    Text Solution

    |

  17. In the previous question (no.63) find the number of ways in which only...

    Text Solution

    |

  18. Find the number of digits required to write down the number of pages i...

    Text Solution

    |

  19. The number of different numbers that can be formed by using all the di...

    Text Solution

    |

  20. there are 5 different boxes and 7 different balls. All the 7 bal...

    Text Solution

    |