Home
Class 12
MATHS
A bag contains 7 red and 3 white balls. ...

A bag contains 7 red and 3 white balls. Three balls are drawn at random. Probability, that the two balls are red and one is white, is

A

`21/40`

B

`21/80`

C

`7/40`

D

`7/80`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - B Objective Type Questions (One option is correct))|64 Videos

  • PROBABILITY

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

  • PROBABILITY

    AAKASH INSTITUTE ENGLISH|Exercise TRY YOURSELF|42 Videos

  • PRINCIPLE OF MATHEMATICAL

    AAKASH INSTITUTE ENGLISH|Exercise Section-D:(Assertion-Reason Type Questions)|11 Videos

  • RELATIONS AND FUNCTIONS

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

Similar Questions

Explore conceptually related problems

A bag contain 8 red and 5 white balls. Three balls are drawn at random. Find the probability that: All the three balls are white. All the three balls are red. One ball is red and two balls are white.

A bag contain 8 red and 5 white balls. Three balls are drawn at random. Find the probability that: (i)All the three balls are white. (ii)All the three balls are red. (iii)One ball is red and two balls are white.

A bag contains 9 red and 12 white balls one ball is drawn at random. Find the probability that the ball drawn is red.

A bag contains 8 red and 7 black balls . Two balls are drawn at random . Probability that both the balls are of the same color is

An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

A bag contains 6 white ., 7 red and 5 black balls . Three balls are drawn at random . Find the probability that they will be white .

A bag contains 6 red, 4 white and 8 blue balls. If three balls are drawn at random, find the probability that one is red, one is white and one is blue.

A bag contains 5 red, 6 white and 7 black balls. Two balls are drawn at random. what is the probability that both balls are red or both are black?

A box contains 3 red, 4 black and 5 white balls. Three balls are drawn at random. Then the probability of 2 white balls and 1 red ball is

A bag contains 8 red, 3 white and 9 blue balls. If three balls are drawn at random, determine the probability that the ball is red.

AAKASH INSTITUTE ENGLISH-PROBABILITY-ASSIGNMENT (SECTION - A Competition Level Questions)
  1. If P(AcupB) = 0.8 and P(AcapB) = 0.3, then P(barA)+P(barB) is equal to

    Text Solution

    |

  2. The first twelve letters of the alphabet are written down at random ....

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  8. If four whole numbers taken at random are multiplied together, then fi...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  11. Two numbers are selected randomly from the set S={1,2,3,4,5,6} without...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  14. If A and B are two independent events such that P (A) =1//2, P(B)=1//5...

    Text Solution

    |

  15. Let 0ltP(A)lt1, 0ltP(B)lt1 and P(AcupB)=P(A)+P(B)-P(A)P(B), then,

    Text Solution

    |

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

    Text Solution

    |

  17. A dice is thrown three times and the sum of the thrown numbers in 15. ...

    Text Solution

    |

  18. The dice are thrown. What is the probability that the sum of the numbe...

    Text Solution

    |

  19. If A and B are two events such that P(A) = 3/8 , P(B) = 5/8 and P(A cu...

    Text Solution

    |

  20. If 4P(A) = 6P(B) = 10P(AcapB)=1, then P(B/A)

    Text Solution

    |