Home
Class 11
MATHS
The value of 12C3 is equal to:...

The value of `12C_3` is equal to:

A

2112

B

220

C

36

D

none of these

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    JBD PUBLICATION|Exercise EXAMPLE|59 Videos

  • MODEL PAPER (8)

    JBD PUBLICATION|Exercise EXERICSE|41 Videos

  • PRINCIPLE OF MATHEMATICAL INDUCTION

    JBD PUBLICATION|Exercise EXAMPLE|11 Videos

Similar Questions

Explore conceptually related problems

The value of 10C_3 is:

If |{:(.^(9)C_(4),.^(9)C_(5),.^(10)C_(r)),(.^(10)C_(6 ),.^(10)C_(7),.^(11)C_(r+2)),(.^(11)C_(8),.^(11)C_(9),.^(12)C_(r+4)):}|=0 , then the value of r is equal to

If {:X=[(3,-4),(1,-1)]:} , the value of X^n is equal to

If 2 - i is a root of the equation ax^2+ 12x + b=0 (where a and b are real), then the value of ab is equal to :

If the maximum and minimum values of y=(x^2-3x+c)/(x^2+3x+c) are 7 and 1/7 respectively then the value of c is equal to

if the product of n matrices [(1,1),(0,1)][(1,2),(0,1)][(1,3),(0,1)]…[(1,n),(0,1)] is equal to the matrix [(1,378),(0,1)] the value of n is equal to

In a DeltaABC , if b =(sqrt3-1) a and angle C=30^(@), then the value of (A-B) is equal to (All symbols used have usual meaning in the triangel.)

If the roots of the equaion x^4-12 x^3+c x^2+dx+81=0 are positive then the value of c is The value of d is. Roots of the equation 2cx+d=0 is

Number of lines that can be drawn through the point (4,-5) so that its distance from (-2,3) will be equal to 12 is equal to

The value of cos(sin^-1(2/3)) is equal to

JBD PUBLICATION-PERMUTATIONS AND COMBINATIONS-EXAMPLE
  1. The value of 12C3 is equal to:

    Text Solution

    |

  2. Find the number of different 8-letter arrangenients that can be made f...

    Text Solution

    |

  3. A class has 30 students, In how many ways can three prizes be awarded ...

    Text Solution

    |

  4. A class has 30 students, In how many ways can three prizes be awarded ...

    Text Solution

    |

  5. A coin is tossed 3 times and the outcomes are recorded. How many possi...

    Text Solution

    |

  6. How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4...

    Text Solution

    |

  7. How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4...

    Text Solution

    |

  8. How many 3-digit numbers are there without repetition?

    Text Solution

    |

  9. If 1/(6!)+1/(7!)=x/(8!), find x

    Text Solution

    |

  10. Show that (2n)!/n!=[1.3.5……………….(2n-1)]2^n.

    Text Solution

    |

  11. How many 4-digit numbers are there with no digit repeated?

    Text Solution

    |

  12. How many numbers are there between 1000 and 9999 so that no digit is r...

    Text Solution

    |

  13. In how many ways can 5 girls be seated in a row so that two girls Ridh...

    Text Solution

    |

  14. In how many ways can 5 girls be seated in a row so that two girls Ridh...

    Text Solution

    |

  15. Find the number of permutations of the letters of word 'DISSIMILAR' wh...

    Text Solution

    |

  16. If nC6=nC2, find ^nC2.

    Text Solution

    |

  17. If 10Cr=^10C2 find the values of r.

    Text Solution

    |

  18. A bag contains 5 black and 6 red balls. Determine the number of ways i...

    Text Solution

    |

  19. In how many ways can a student choose a programme of 5 courses if 9 co...

    Text Solution

    |

  20. How many chords can be drawn through 21 points on a circle?

    Text Solution

    |

  21. Out of 18 points in a plane, no three are in the same straight line ex...

    Text Solution

    |