Home
Class 12
MATHS
Probability that a student will succeed ...

Probability that a student will succeed in IIT entrance test is 0.2 and that he will succeed in Roorkee entrance test is 0.5. If the probability that he will be successful at both the places is 0.3, then the probability that he does not succeed at both the places is

A

0.4

B

0.3

C

0.2

D

0.6

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PERMUTATION AND COMBINATIONS

    HIMALAYA PUBLICATION|Exercise Question Bank|104 Videos

  • PROGRESSIONS

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|97 Videos

Similar Questions

Explore conceptually related problems

The probability that a person is not swimmer is 0.3. The probability that out of 5 persons 4 are swimmer is

Two students Anil and Ashima appeared in an examination . The probability that Anil will quanlify the examination is 0.05 and that Ashima will qualify the examination is 0.10 . The probability hat both will qualify the examination is 0.02 . Find the Probabiity that both Anil and Ashima will not qualify the examination ?

In a hurdle race, a player has to cross 10 hurdles. The probability that he will clear each hurdle is (5)/(6) . What is the probability that he will knock down fewer than 2 hurdles?

The probability that a person will hit a target in shooting practices is 0.3 . If he shoots 10 times , then the probability of his shooting the target is :

The probability that a company executive will travel by train is 2/3 and that he will travel by plane is 1/5 . The probability of his travelling by train or plane is :

The probability that a student will pass the final examinatin in both English and Hindi is 0.5 and the probability of passing neither is 0.1. If the probability of passing the English examination is 0.75. What is the probability of passing the Hindi examination?

Two students Anil and Sunil appear in an examination. The probability that Anil will qualify in the examination is 0.05 and that Sunil Will qualify is 0.10. The probability that both will qualify in the examination is 0.02 find the probability that Anil and Sunil Will not qualify in the examination.

In a test, an examinee either guesses or copies or knows the answer to a multiple choice question with four choices. The probability that he makes a guess is 1/3 and the probability that he copies the answer is 1/6. The probability that his answer is correct given that he copied it is 1/8. Find the probability that he knew the answer to the question, given that he correctly answered it.

It is given that in a group of 3 students, the probability of 2 students not having the same birthday is 0.992 . What is the probability that the 2 students have the same birthday?

The probability of two events A and B are 0.25 and 0.40 respectively. The probability that both A and B . occur is 0.15. The probability that neither A nor B occurs is

HIMALAYA PUBLICATION-PROBABILITY-QUESTION BANK
  1. The probability of occurrence of a multiple of 2 n one dice and a mul...

    Text Solution

    |

  2. Three six faced dice are tossed together, then the probability that ex...

    Text Solution

    |

  3. Probability that a student will succeed in IIT entrance test is 0.2 an...

    Text Solution

    |

  4. For any two independent events E(1) and E(2), P {(E(1) cup E(2)) cap ...

    Text Solution

    |

  5. For three events A, B, C, we have P(A cup B) = p, P(A cup C) = p, P(A ...

    Text Solution

    |

  6. If from each of the three boxes containing 3 white and 1 black , 2...

    Text Solution

    |

  7. There are four machines and it is known that exactly two of them are f...

    Text Solution

    |

  8. If bar (E )and bar(F) are complementary events of events E and F res...

    Text Solution

    |

  9. An experiment has 10 equally likely outcomes. Let A and B be two non-e...

    Text Solution

    |

  10. Let omega be a complex cube a root of unity with omega != 1 . A fai...

    Text Solution

    |

  11. A and B are two events such that P(A cup B) = 3/4, P(A cap B) = 1/4, P...

    Text Solution

    |

  12. A die is thrown . Let A be the event that the number obtained is great...

    Text Solution

    |

  13. It is given that events A and B are such that : P(A) = 1/4 ,P (A//B) =...

    Text Solution

    |

  14. In a binomial distribution B( n , p =1/4) , if the probability of at ...

    Text Solution

    |

  15. One ticket is selected at random from 50 tickets numbered 00,01,02……4...

    Text Solution

    |

  16. Out of 3 n consecutive integers, three are selected at random. Find th...

    Text Solution

    |

  17. An urn contains nine balls of which three are red , four are blue and ...

    Text Solution

    |

  18. The probability that a isumtilci sefected at random from the set of nu...

    Text Solution

    |

  19. If A and B are independent events such that P(B) = 2/7, P(A cup bar B)...

    Text Solution

    |

  20. Four numbers are chosen at random from {1,2,3, …..40} The probubility ...

    Text Solution

    |