Home
Class 12
MATHS
The probability of A to fail in an exami...

The probability of A to fail in an examination is `1/5` and that of B is `3/10`. If the probability that both of them fails is `3/50`, then the probability that only one of A and B fails, is

A

`1/2`

B

`11/25`

C

`19/50`

D

`12/25`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - B Objective Type Questions (One option is correct))|65 Videos
  • PROBABILITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - C Objective Type Questions (More than one options are correct))|21 Videos
  • PROBABILITY

    AAKASH INSTITUTE|Exercise TRY YOURSELF|36 Videos
  • PRINCIPLE OF MATHEMATICAL

    AAKASH INSTITUTE|Exercise Section-D:(Assertion-Reason Type Questions)|12 Videos
  • RELATIONS AND FUNCTIONS

    AAKASH INSTITUTE|Exercise Assignment (Section - J) Aakash Challengers Questions|8 Videos

Similar Questions

Explore conceptually related problems

If the probabilities for A to fail in an examination is 0.2 and that for B is 0.3, then the probability that either A or B fails is

The probability of A winning a race is 1/2, and that for B is 1/3. Find the probability that only one of them wins

The probability of A winning a race is 1/2, and that for B is 1/3. Find the probability that at least one of them wins.

The probability of A winning a race is 1/2, and that for B is 1/3. Find the probability that only B wins

If the probability of A to fall in an examination is (1)/(5) and that of B is (3)/(10) .then,the probability that either A or B fails is a.1/2 b.11/2 c.19/50 d.none of these

If the probability for A to fail in an examination is 0.2 and that for B is 0.3, then the probability that either A or B fails, is (A) 0.38 (B) 0.44 (C) 0.50 (D) 0.94

AAKASH INSTITUTE-PROBABILITY-ASSIGNMENT (SECTION - A Competition Level Questions)
  1. Four cards are drawn at a time from a pack of 5 playing cards. Find th...

    Text Solution

    |

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

    Text Solution

    |

  3. The probability of A to fail in an examination is 1/5 and that of B is...

    Text Solution

    |

  4. Five persons entered the lift cabin on the ground floor of an 8 flo...

    Text Solution

    |

  5. If P(AcupB) = 0.8 and P(AcapB) = 0.3, then P(barA)+P(barB) is equal to

    Text Solution

    |

  6. The first 12 letters of English alphabet are written down at random in...

    Text Solution

    |

  7. A bag contains 7 red and 3 white balls. Three balls are drawn at rando...

    Text Solution

    |

  8. A five digit number is formed by the digit 1,2,3,4 and 5 without repet...

    Text Solution

    |

  9. If three distinct number are chosen randomly from the first 100 natura...

    Text Solution

    |

  10. The letters of the word NAVANAVALAVANYAM are arranged in a row at rand...

    Text Solution

    |

  11. Six '+' signs and five '-' signs are to be arranged in a row. If the a...

    Text Solution

    |

  12. If four whole numbers taken art random are multiplied together, the...

    Text Solution

    |

  13. A box contains 6 nails and 10 nuts. Half of the nails and half of t...

    Text Solution

    |

  14. A locker can be opened by dialing a fixed three digit code from 000 to...

    Text Solution

    |

  15. Two numbers are chosen at random from {1, 2, 3, 4, 5, 6} at a time. Th...

    Text Solution

    |

  16. If A and B are two events such that P(A) = 1/3, P(B) = 1/4 and P(AcapB...

    Text Solution

    |

  17. If E and F are independent events such that 0 lt P(E) lt 1 and 0 lt P(...

    Text Solution

    |

  18. If A and B are two independent events such that P(A) = 1/2 and P(B) = ...

    Text Solution

    |

  19. Let 0 lt P(A) lt 1, 0 lt P(B) lt 1 and P(AcupB) = P(A) + P(B) - P(A) P...

    Text Solution

    |

  20. A coin is tossed three times in succession. If E is the event that the...

    Text Solution

    |