Home
Class 11
MATHS
There are 5 bulbs in a room. Each one of...

There are 5 bulbs in a room. Each one of them can be operated independently. Then the no. of ways in which the room is illuminated I is:

A

10

B

32

C

31

D

63

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • COMBINATORICS AND MATHEMATICAL INDUCTION

    PREMIERS PUBLISHERS|Exercise PROBLEMS FOR PRACTICE (Answer the following questions)|11 Videos

  • BINOMIAL THEOREMN,SEQUENCES AND SERIES

    PREMIERS PUBLISHERS|Exercise PROBLEMS FOR PRACTICE(Choose the correct option for the following)|31 Videos

  • DIFFEREMTIAL CALCULUS DIFFERENTIABILITY AND METHODS OF DIFFERENTITAION

    PREMIERS PUBLISHERS|Exercise PROBLEMS FOR PRACTICE|73 Videos

Similar Questions

Explore conceptually related problems

There are 10 bulbs in a room. Each one of them can be operated independently . Find the number of ways in which the room can be illuminated .

There are 10 bulbs in a room . Each one of them can be operated independently. Find the number of ways in which the room can be illuminated.

There are 10 bulbs in a room. Each one of them can be operated indipendently. Find the number of ways in which the room can be illuminated I is.

If there are 10 stations on a route and the train has to be stopped at 3 of them, then the number of ways in which the train can be stopped so that atleast two stopping stations are consecutive is

m' men and 'n' women are to be seated in a row so that no two women sit next to each other. If mgen then the number of ways in which this can be done is

There are four balls of different colors and four boxes of colors same as those of the balls. Find the number of ways in which the balls, one in each box, could be placed in such a way that a ball does not go to box of its own color.

There are 'n' different books and 'p' copies of each. The number of ways in which a selection can be made from them is

There are 3 copies each of 4 different books. The number of ways in which they can be arranged in a shelf is

There are 5 teachers and 20 students. Out of them a committee of 2 teachers and 3 students is to be formed. Find the number of ways in which this can be done. Further find in hdw many of these committees. Q a particular teacher is included?

PREMIERS PUBLISHERS-COMBINATORICS AND MATHEMATICAL INDUCTION-PROBLEMS FOR PRACTICE (Choose the correct option for the following)
  1. 0! Is :

    Text Solution

    |

  2. If n different objects are to placed in m places then the number of wa...

    Text Solution

    |

  3. There are 5 bulbs in a room. Each one of them can be operated independ...

    Text Solution

    |

  4. If 7!/n!=7 then the value of n is:

    Text Solution

    |

  5. If n! + (n-1)! =144, then the value of n is :

    Text Solution

    |

  6. Prove ""^(n)P(r)=""^(n-1)P(r) +r. ""^(n-1)P(r-1)

    Text Solution

    |

  7. ""^(7)C(3) + ""^(7)C(2)=""^(x)C(y) then x and y are:

    Text Solution

    |

  8. If 5 parallel lines intersect another set of 4 , parallel lines (not p...

    Text Solution

    |

  9. 1^(2) + 2^(2) + 3^(2) + …+ 10^(2) is :

    Text Solution

    |

  10. If ""^(x^(2)-x)C(7)=""^(x^(2)-x)C(5) then x is :

    Text Solution

    |

  11. A photographer wants to take a photo of 3 students out of 6 students ...

    Text Solution

    |

  12. In 3 fingers, the number of ways five rings can be worn in...............

    Text Solution

    |

  13. There are 8 points in a plane, no three of them are collinear .The num...

    Text Solution

    |

  14. 10 students compete in a race. In how many ways first two prizes be g...

    Text Solution

    |

  15. How many lines can be drawn given six points of which 3 are collinear?

    Text Solution

    |

  16. Find the odd one out:

    Text Solution

    |

  17. Among the following, find which one cannot be no. of digonals of a pol...

    Text Solution

    |

  18. Find the correct statement:

    Text Solution

    |

  19. Find the correct statement:

    Text Solution

    |

  20. Find the incorrect statement:

    Text Solution

    |