Home
Class 12
MATHS
Three natural numbers are taken at rando...

Three natural numbers are taken at random from the set of first 100 natural numbers. The probability that their A.M. is 25, is

A

`(""^(77)C_(2))/(""^(100)C_(3))`

B

`(""^(25)C_(2))/(""^(100)C_(3))`

C

`(""^(74)C_(72))/(""^(100)C_(97))`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY-1

    DISHA PUBLICATION|Exercise EXERCISE-1 : CONCEPT BUILDER|180 Videos
  • PROBABILITY-1

    DISHA PUBLICATION|Exercise EXERCISE-1 : CONCEPT BUILDER|180 Videos
  • PROBABILITY -2

    DISHA PUBLICATION|Exercise EXERCISE - 2 : CONCEPT APPLICATOR|30 Videos
  • RELATIONS AND FUNCTIONS

    DISHA PUBLICATION|Exercise EXERCISE - 2|30 Videos

Similar Questions

Explore conceptually related problems

Three natural numbers are taken at random from the st of first 100 natural numbers.The probability that their A.M.is 25, is

Find the sum of the first 100 natural numbers.

Find the sum of first 25 natural numbers.

Three distinct numbers are chosen at random from the first 15 natural numbers. The probability that the sum will be divisible by 3 is

Find the HCF of the first 100 natural numbers.

If three numbers are selected from the set of the first 20 natural numbers, the probability that they are in GP, is

The average of first 100 natural number is:

A natural number is chosen at random from the first 100 natural numbers. What is the probability that the number chosen is a multiple of 2 or 3 or 5?

DISHA PUBLICATION-PROBABILITY-1-EXERCISE-2 : CONCEPT APPLICATOR
  1. Fifteen coupons are numbered 1, 2,....,15, respectively. Seven coupons...

    Text Solution

    |

  2. A coin is tossed three times. The probability of getting head and tail...

    Text Solution

    |

  3. Three natural numbers are taken at random from the set of first 100 na...

    Text Solution

    |

  4. A die is loaded so that the probability of a face i is proportional...

    Text Solution

    |

  5. If two numbers p and q are choosen randomly from the set {1, 2, 3, 4} ...

    Text Solution

    |

  6. A natural number is chosen at random from the first 100 natural num...

    Text Solution

    |

  7. If two dice are thrown simultaneously, then the probability that the s...

    Text Solution

    |

  8. Given that n is odd, number of ways in which three numbers in AP can b...

    Text Solution

    |

  9. A fair coin is tossed 2n times. The probability of getting as many hea...

    Text Solution

    |

  10. A bag contains 8 red and 7 black balls. Two balls are drawn at random....

    Text Solution

    |

  11. If A and B are any two events such that P(A uu B) = 3/4, P(A nn B) =...

    Text Solution

    |

  12. Let A ,B ,C be three events. If the probability of occurring exactly o...

    Text Solution

    |

  13. A die is thrown. Let A be the event that the number obtained is gre...

    Text Solution

    |

  14. Card is drawn from a pack of 52 cards. A persons bets that it is a spa...

    Text Solution

    |

  15. If P(AnnB)=1/2,P( A nn B )=1/3, P(A)=p , P(B)=2p , then find the ...

    Text Solution

    |

  16. If A and B are two events such that P(A)=(1)/(2) and P(B)=(2)/(3), the...

    Text Solution

    |

  17. An exeriment yield 3 mutually exclusive and exhaustive events A,B, an...

    Text Solution

    |

  18. A point is selected at random from the interior of a circle. The proba...

    Text Solution

    |

  19. If P (A) = P (B) = x and P(AnnB)=P(A'nnB')=1//3, then x = ?

    Text Solution

    |

  20. The probability that a police inspector Ravi will catch a thief in a d...

    Text Solution

    |