Home
Class 9
MATHS
Out of 3n consecutive integers, three ar...

Out of `3n` consecutive integers, three are selected at random. Find the probability that their sum is divisible by 3.

Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    KUMAR PRAKASHAN|Exercise Multiple Choice Questions (MCQs)|10 Videos

  • PROBABILITY

    KUMAR PRAKASHAN|Exercise Skill Testing Exercise|8 Videos

  • POLYNOMIALS

    KUMAR PRAKASHAN|Exercise Multiple Choice Questions (MCQs)|20 Videos

  • QUADRILATERALS

    KUMAR PRAKASHAN|Exercise MULTIPLE CHOICE QUESTION(MCQs)|15 Videos

Similar Questions

Explore conceptually related problems

3 distinct integers are selected at random form 1, 2, 3, …, 20. find out the probability that the sum is divisible by 5

Two non negative integers are chosen at random. The probability that the sum of the square is divisible by 10, is

A die is tossed. The probability that the number on a die is divisible by 3 is …….

The integer is selected at random from 1 to 25. The probability that it is a prime number is

A positive integer N is selected so as to be 100ltNlt200. Then, the probability that it is divisible by 4 or 7, is

Out of (2n+1) tickets consecutively numbered, three are drawn at random. Find the chance that the numbers on them are in AP.

A book contains 1000 pages. A page is chosen at random. Find the probability that the sum of the digits of the marked number on the page is equal to 9.

Three numbers are chosedn from 1 to 20 . Find the probability that they are not consecutive

Find the sum of all three digit natural numbers divisible by 7

(n>=5) persons are sitting in a row. Three of these are selected at random. The probability that no two of the selected persons sit together is

KUMAR PRAKASHAN-PROBABILITY -EXERCISE 15.1
  1. 1500 families with 2 children were selected randomly , and the followi...

    Text Solution

    |

  2. The following table given the marks scored by 50 students in a 100 mar...

    Text Solution

    |

  3. Three coins are tossed simultaneously 200 times with the following fre...

    Text Solution

    |

  4. An organisation selected 2400 families at random and surveyed them to ...

    Text Solution

    |

  5. An organisation selected 2400 families at random and surveyed them to ...

    Text Solution

    |

  6. An organisation selected 2400 families at random and surveyed them to ...

    Text Solution

    |

  7. An organisation selected 2400 families at random and surveyed them to ...

    Text Solution

    |

  8. An organisation selected 2400 families at random and surveyed them to ...

    Text Solution

    |

  9. Find the probability that a student obtained marks 60 or above.

    Text Solution

    |

  10. The following table given the marks scored by 50 students in a 100 mar...

    Text Solution

    |

  11. To know the opinion of the students about the subject statistics , a s...

    Text Solution

    |

  12. To know the opinion of the students about the subject statistics , a s...

    Text Solution

    |

  13. What is the empirical probability that an engineer lives : within 1...

    Text Solution

    |

  14. What is the empirical probability that an engineer lives : within 1...

    Text Solution

    |

  15. Find the probability that a number selected at random from 1 to 100 is...

    Text Solution

    |

  16. 5 girls and 10 boys sit at random in a row having 15 chairs numbered a...

    Text Solution

    |

  17. Out of 3n consecutive integers, three are selected at random. Find t...

    Text Solution

    |

  18. Eleven bags of wheat flour, each marked 5 kg, actually contained the f...

    Text Solution

    |

  19. In sum you were asked to prepare a frequency distribution table, rega...

    Text Solution

    |

  20. Everyone should have knowledge about his/her blood group as well as th...

    Text Solution

    |