Home
Class 11
MATHS
If 1/(9!)+1/(10!)=x/(11!) then x=...

If `1/(9!)+1/(10!)=x/(11!)` then `x=`

A

10

B

11

C

121

D

9

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    MODERN PUBLICATION|Exercise OBJECTIVE TYPE QUESTIONS (B) FILL IN THE BLANKS|10 Videos

  • PERMUTATIONS AND COMBINATIONS

    MODERN PUBLICATION|Exercise OBJECTIVE TYPE QUESTIONS (C ) TRUE/FALSE QUESTIONS|5 Videos

  • PERMUTATIONS AND COMBINATIONS

    MODERN PUBLICATION|Exercise EXERCISE 7 (k) Long Answer Type Questions - I|3 Videos

  • MOCK TEST

    MODERN PUBLICATION|Exercise SECTION - D|5 Videos

  • PROBABILITY

    MODERN PUBLICATION|Exercise CHAPTER TEST|12 Videos

Similar Questions

Explore conceptually related problems

If (1)/(9!)+(1)/(10!)=(n)/(11!) , then n=121 .

If (1)/(9!)+(1)/(10!)=(x)/(11!), find x

(i) If (1)/(9!)+(1)/(10!)=(n)/(11!) , find n. (ii) If (1)/(8!)+(1)/(9!)=(x)/(10!) , find x.

(1)/(8!)+(1)/(9!)=(x)/(10!) find x

Prove that: (1)/(9!)+(1)/(10!)+(1)/(11!)=(122)/(11!)

If (x)/(10!)=(1)/(8!)+(1)/(9!), find the value of x

(x-3)/(9)-(x-2)/(10)=1

MODERN PUBLICATION-PERMUTATIONS AND COMBINATIONS -OBJECTIVE TYPE QUESTIONS (A) MULTIPLE CHOICE QUESTIONS
  1. The number of signals that can be sent by 5 flags of different colours...

    Text Solution

    |

  2. In an examination there are three multiple choice questions and each q...

    Text Solution

    |

  3. If 1/(9!)+1/(10!)=x/(11!) then x=

    Text Solution

    |

  4. L.C.M. of 3!, 4! And 5! Is :

    Text Solution

    |

  5. 7!-5! is equal to :

    Text Solution

    |

  6. The value of f(4) - f(3) is

    Text Solution

    |

  7. If 1/(8!)+1/(9!)=x/(10 !),find x

    Text Solution

    |

  8. The correct match of the following is : {:(,"Column - I",,"Column ...

    Text Solution

    |

  9. The correct match of the following is : {:(,"Column I",,"Column II...

    Text Solution

    |

  10. (7!) / (5!) is :

    Text Solution

    |

  11. The value of |ul(4)-|ul(3) is :

    Text Solution

    |

  12. If ""^(n)C(12)=""^(n)C(8), then n is equal to

    Text Solution

    |

  13. The number of all numbers having 5 digits, with distinct digits, is :

    Text Solution

    |

  14. The number of words that can be formed by using all the letters of the...

    Text Solution

    |

  15. Given five line segments of length 2, 3, 4, 5, 6 units. Then the numb...

    Text Solution

    |

  16. How many numbers greater than 10 lacs be formed from 2,3,0,3,4,2,3? 42...

    Text Solution

    |

  17. The remainder obtained when 1!+2!+3!+……+11! is divided by 12 is :

    Text Solution

    |

  18. The value of ""^(2)P(1)+""^(3)P(1)+……+ ""^(n)P(1) is equal to :

    Text Solution

    |

  19. How many four digit numbers abcd exist such that a is odd, b is divisi...

    Text Solution

    |

  20. Out of 7 consonants and 4 vowels. how many words of 3 consonant and 2 ...

    Text Solution

    |