Home
Class 14
MATHS
If 10 objects are arranged in a row, the...

If 10 objects are arranged in a row, then the number of ways of selecting three of these objects so that no two of them are next to each other is :

A

56

B

65

C

28

D

13

Text Solution

Verified by Experts

The correct Answer is:
A
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

If n objects are arrange in a row,then the number of ways of selecting three of these objects so that no two of them are next to each other is a.^(n-2)C_(3) b.^(n-3)C_(2) c.^(n-3)C_(3) d.none of these

If n,(n>5) things are arranged in a circular order,the number of ways of selecting three of the things so that no two of which are next to each other is

Ten persons are arranged in a row.The number of ways of selecting four persons so that no two persons sitting next to each other are selected is

10 persons are seated at round table then the number of ways of selecting 3 persons out of them if no two persons are adjacent to each other is

QUANTUM CAT-PERMUTATIONS & COMBINATIONS-QUESTION BANK
  1. The sum of the divisors of 2^3 .3^4 .5^2 is:

    Text Solution

    |

  2. The number of ways of selecting 10 balls from unlimited number of red,...

    Text Solution

    |

  3. If 10 objects are arranged in a row, then the number of ways of select...

    Text Solution

    |

  4. The number of non-negative integral solution x1 + x2 + x3 + x4 <=n (wh...

    Text Solution

    |

  5. Find the total number of permutations of n different things taken not ...

    Text Solution

    |

  6. The number of rectangles on a chess board is

    Text Solution

    |

  7. Ten persons, amongst whom are A, B and C are to speak at function. Fin...

    Text Solution

    |

  8. Find the number of natural numbers which are less than 2xx10^8 and whi...

    Text Solution

    |

  9. Ten persons are arranged in a row. The number of ways of selecting fou...

    Text Solution

    |

  10. n bit strings are made by filling the digits 0 or 1.The number of stri...

    Text Solution

    |

  11. A question paper has two parts-Part A and Part B. Part A contains 5 qu...

    Text Solution

    |

  12. How many different vehicle licence plates can be made if the licences ...

    Text Solution

    |

  13. In the previous question (no.46), how many different plates can be for...

    Text Solution

    |

  14. 2m people are arranged along two sides of a long table with m chairs e...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |