Home
Class 10
MATHS
A month is selected at random in a ye...

A month is selected at random in a year. The probability that it is March or October, is `1/(12)` (b) `1/6` (c) `3/4` (d) None of these

Promotional Banner

Topper's Solved these Questions

  • POLYNOMIAL

    RD SHARMA ENGLISH|Exercise All Questions|179 Videos
  • QUADRATIC EQUATIONS

    RD SHARMA ENGLISH|Exercise All Questions|390 Videos

Similar Questions

Explore conceptually related problems

A number is selected at random from the numbers 1 to 30. The probability that it is a prime number is (a) 2/3 (b) 1/6 (c) 1/3 (d) (11)/(30)

Suppose n ( >=3) persons are sitting in a row. Two of them are selected at random. The probability that they are not together is (A) 1- 2/n (B) 2/(n-1) (C) 1- 1/n (D) nonoe of these

A number is selected from numbers 1 to 25. The probability that it is prime is (a) 2/3 (b) 1/6 (c) 1/3 (d) 5/6

From a group of 10 persons consisting of 5 lawyers, 3 doctors and 2 engineers, four persons are selected at random. The probability that the selection contains at least one of each category is (A) 1//2 (B) 1//3 (C) 2//3 (D) none of these

What is the probability that a non-leap year has 53 Sundays? 6/7 (b) 1/7 (c) 5/7 (d) None of these

The numbers (a ,b ,c) are selected by throwing a dice thrice, then the probability that (a ,b ,c) are in A.P. is 1//12 b. 1//6 c. 1//4 d. none of these

Dialling a telephone number an old man forgets the last two digits remembering only that these are different dialled at random. The probability that the number is dialled correctly is 1//45 b. 1//90 c. 1//100 d. none of these

A bag contains three green marbles, four blue marbles, and two orange marbles. If a marble is picked at random, then the probability that it is not an orange marble is 1/4 (b) 1/3 (c) 4/9 (d) 7/9

A bag contains 5 black balls, 4 white balls and 3 red balls. If a ball is selected random wise, the probability that if is black or red balls is 1/3 b. 1/4 c. 5/(12) d. 2/3

The value of 3/(25) is (a)1.2 (b) 0.12 (c) 0.012 (d) None of these

RD SHARMA ENGLISH-PROBABILITY -All Questions
  1. The probability of a certain event is 0 (b) 1 (c) 1//2 (d) non-e...

    Text Solution

    |

  2. The probability of an impossible event is 0 (b) 1 (c) 1//2 (d) n...

    Text Solution

    |

  3. What is the probability that a non-leap year has 53 Sundays? 6/7 (b...

    Text Solution

    |

  4. Aarushi, sold 100 lottery tickets in which 5 tickets carry prizes. ...

    Text Solution

    |

  5. A number is selected from first 50 natural numbers. What is the pro...

    Text Solution

    |

  6. Two dice are rolled simultaneously. The probability that they show ...

    Text Solution

    |

  7. What is the probability that a leap year has 52 Mondays?

    Text Solution

    |

  8. A month is selected at random in a year. The probability that it is...

    Text Solution

    |

  9. From the letters of the word MOBILE, a letter is selected. The prob...

    Text Solution

    |

  10. If a two digit number is chosen at random, then the probability that...

    Text Solution

    |

  11. Two dice are thrown together. The probability of getting the same n...

    Text Solution

    |

  12. A die is thrown once. The probability of getting a prime number is ...

    Text Solution

    |

  13. The probability of getting an even number, when a die is thrown once...

    Text Solution

    |

  14. A box contains 90 discs, numbered from 1 to 90. If one disc is draw...

    Text Solution

    |

  15. The probability that a number selected at random from the numbers 1...

    Text Solution

    |

  16. A bag contains cards numbered from 1 to 25. A card is drawn at rando...

    Text Solution

    |

  17. Two different coins are tossed simultaneously. The probability of g...

    Text Solution

    |

  18. If two different dice are rolled together, the probability of gettin...

    Text Solution

    |

  19. A number is selected at random from the numbers 1 to 30. The probabi...

    Text Solution

    |

  20. A card is drawn at random from a pack of 52 cards. The probability t...

    Text Solution

    |