Home
Class 12
MATHS
s(1),s(2) ...............,s(10) are the ...

`s_(1),s_(2)` ...............,`s_(10)` are the speakers in a conference, If `s_(1)` addresses only after `s_(2)`, then the number of ways the speakers address is

A

`10!`

B

`9!`

C

`10xx8!`

D

`(10!)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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

S_1 ,S_2 ,. . . S_(10) are the speakers in a conference if S_1 addresses of ways in which a specified speaker is to speak before another specified speaker is

IF eight person are to address a meeting , then the number of ways in which a specified speaker is to speak before another specified speaker is

In 1s^1 2s^2 2p^4 the number of unpaired electrons in ground state are

For the configuration 1s^(2)2s^(1) , the quantum numbers for the outermost electron are

For the configuration 1s^(2)2s^(1) , the quantum numbers for the outermost electron are

The number of unpaired electrons in 1s^(2)2s^(2)2p^(3) is

In the structure given below, the sites S_(1) and S_(2) represent

If S_(1), S_(2),S_(3), are the sums of first n natural numbers their squares and their cubes respectively, then S_(3) (1 + 8 S_(1)) =

AAKASH SERIES-PERMUTATIONS & COMBINATIONS-EXERCISE-II
  1. The number of ways in which ten candidates A(1),A(2),A(3),A(4),……,A(10...

    Text Solution

    |

  2. Find the number of ways of seating 10 students A(1), A(2)…..A(10) in a...

    Text Solution

    |

  3. s(1),s(2) ...............,s(10) are the speakers in a conference, If s...

    Text Solution

    |

  4. The letters of the word 'HEXAGON' are arranged in all possible ways. I...

    Text Solution

    |

  5. 9 balls are to placed in 9 boxes : and 5 of the balls cannot ...

    Text Solution

    |

  6. The number of odd numbers having 4 digits can be formed from

    Text Solution

    |

  7. Total number of four digit odd numbers that can be formed using 0, 1, ...

    Text Solution

    |

  8. The number of four digit even numbers that can be formed from 0,1,2,3,...

    Text Solution

    |

  9. The number of positive integers which can be formed by any number of d...

    Text Solution

    |

  10. The number of natural numbers less than 1000, in which no two dig...

    Text Solution

    |

  11. The number of 5-digited numbers which are not divisible by 5 and which...

    Text Solution

    |

  12. The number of four-digit numbers formed by using the digits 0,2,4,5 an...

    Text Solution

    |

  13. The number of four digited numbers formed by 1, 2, 5, 6, 7 divisible b...

    Text Solution

    |

  14. The number of four digited numbers formed by 2, 4, 5, 7, 8 divisible b...

    Text Solution

    |

  15. Five digit numbers divisible by 3 is formed using 0, 1, 2, 3, 4 and 5 ...

    Text Solution

    |

  16. The number of 5 digited numbers that can be formed using the digits 0...

    Text Solution

    |

  17. 5 digit number divisible by 9 are to be formed by using the digits 0, ...

    Text Solution

    |

  18. Number of numbers greater than 24000 can be formed by using digits 1, ...

    Text Solution

    |

  19. A letter lock consists of three rings each marked with 10 different le...

    Text Solution

    |

  20. The number of four digits telephone numbers having atleast one ...

    Text Solution

    |