Home
Class 11
MATHS
Every one of the 10 available lamps can ...

Every one of the 10 available lamps can be switched on to illuminate certain Hall. The total number of ways in which the hall can be illuminated , is

A

55

B

1023

C

`2^10`

D

10!

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PARABOLA, ELLIPSE AND HYPERBOLA

    PATHFINDER|Exercise QUESTION BANK|66 Videos
  • PERMUTATION AND COMBINATIONS

    PATHFINDER|Exercise QUESTION BANK|81 Videos

Similar Questions

Explore conceptually related problems

The are 8 events that can be schedules in a week, then The total number of ways in which the events can be scheduled is

The number of ways in which 5 letters can be posted in 10 letter boxes is

Number of ways in which 200 people can be divided in 100 couples is -

A car will hold 2 persons in the front seat and i in the rear seat . If among 6 persons only 2 can drive , the number of ways , in which the car can be filled , is

In an election the number of contestants is one more than the number of maximum candidates for which a voter can vote. If the total number of ways in which a voter can vote be 62, find the number of candidates.

A team of 10 plyers is formed out of 22 players , if 6 particular players are always included and 4 particular players are always excluded then the number of ways in which the team can be formed, is-

Given that n is the odd the number of ways in which three numbers in A.P. can be selected from {1,2,3,4….,n} is

A team of four students is to be selected from a total of 12 students. The total number of ways in which the team can be selected such that two particular students refuse to be together and other two particular students wish to be together only is equal to a. 220 b. 182 c. 226 d. none of these

A student is allowed to select at most n books from a collection of (2n + 1) books. If the total number of ways in which he can select at least one book is 63, find the value of n.

A person is permitted to selected at least one and at most n coins from a collection of (2n+1) distinct coins. If the total number of ways in which he can select coins is 255, find the value of ndot

PATHFINDER-PERMUTATION AND COMBINATION-QUESTION BANK
  1. A bets man can score 0,1,2,3,4 or 6 runs from a ball. The number of di...

    Text Solution

    |

  2. How many signals can be made by 5 flags from , 8 flags of different co...

    Text Solution

    |

  3. Every one of the 10 available lamps can be switched on to illuminate c...

    Text Solution

    |

  4. There are n points in a plane of which no three are in a straight line...

    Text Solution

    |

  5. There are 3 sections in a question paper each containing 5 questions. ...

    Text Solution

    |

  6. Let A and B be two sets consisting of m and n elements respectively (n...

    Text Solution

    |

  7. Ten different letters of an alphabet are given . Word with five letter...

    Text Solution

    |

  8. The value of the expression .^47C4 + sum(j = 1)^5.^(52 - j)C3 is equal...

    Text Solution

    |

  9. In a plane there are 37 straight lines, of which 13 pass through the p...

    Text Solution

    |

  10. A set contains (2n + 1) elements. The number of subsets of the which c...

    Text Solution

    |

  11. The number of even divisors of 10800 is

    Text Solution

    |

  12. Ten persons are arranged in a row . The number of ways of selecting fo...

    Text Solution

    |

  13. The number of solutions of x1 + x2 + x3 = 51 (x1 , x2 , x3 being odd n...

    Text Solution

    |

  14. The number of times of the digits 3 will be written when listing the i...

    Text Solution

    |

  15. Total number of integral solution of the system of equations x1 + x2 +...

    Text Solution

    |

  16. The number of ways of arranging six person (having A, B, C and D among...

    Text Solution

    |

  17. The total number of 5 digit numbers of different digits in which the d...

    Text Solution

    |

  18. The number of different seven digit numbers that can be written using ...

    Text Solution

    |

  19. Let A be the set of 4- digit numbers a1a2a3a4 where a1gt a2 gt a3 gt a...

    Text Solution

    |

  20. The number of four digits numbers divisible by 3 that can be formed by...

    Text Solution

    |