Home
Class 12
MATHS
In a vessel there are 5 red and 2 green ...

In a vessel there are 5 red and 2 green balls. One ball is selected at random from it. If selected ball is green than one red ball is added in vessel and if selected ball is red then one green ball is added in vessel. Here selected ball is not placed back. Now second ball is drawn from it. Then ....... is the probability of event that second ball is of red colour.

A

`(27)/(49)`

B

`(32)/(49)`

C

`(21)/(49)`

D

`(26)/(49)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    KUMAR PRAKASHAN|Exercise Practice Paper - 13 (Section - A (Choose the correct option))|6 Videos

  • PROBABILITY

    KUMAR PRAKASHAN|Exercise Practice Paper - 13 (Section - B (Answer the following questions))|4 Videos

  • PROBABILITY

    KUMAR PRAKASHAN|Exercise Solutions of NCERT Exemplar Problems (Fillers) |5 Videos

  • MATRICES

    KUMAR PRAKASHAN|Exercise Practice Paper - 3 (Section - D)|1 Videos

  • RELATIONS AND FUNCTIONS

    KUMAR PRAKASHAN|Exercise Practice Paper - 1 (Section - D)|2 Videos

Similar Questions

Explore conceptually related problems

A bag (I) contains 4 white and 2 black balls and bag II contains 3 white and 4 black balls. One bag is selected at random and one ball is drawn from it. Then find the probability of an event that selected ball is white.

In a box there are 3 green and 7 white balls. Two balls are drawn from it without replacement. Find the probability of an event that selected second ball is green when selected first ball is also green.

A bag contains 3 red balls and 5 black balls. A ball is selected at random from the bag. What is the probability that the ball selected is (i) red ? (ii) not red?

A box contains 5 blue and 4 white balls. A person select two balls randomly from it. The probability that both the balls are of same colour is .....

In three boxes numbers of balls are 3 white & 1 black, 2 white and 2 black, 1 white and 3 black balls respectively. One ball is drawn from each box randomly. Then .......... is the probability of event that selected balls are 2 white and 1 black.

A bag contains 8 red and 5 white balls. Three balls are drawn at random. Find the Probability that One ball is red and two balls are white

A bag contains 5 red and 3 blue balls. If 3 balls are drawn at random without replacement the probability of getting exactly one red ball is ……..

KUMAR PRAKASHAN-PROBABILITY-Multiple Choice Questions (MCQs)
  1. S is sample space if P(A)= (1)/(3)P(B) and S= A cup B Then P(A) = .......

    Text Solution

    |

  2. For events A and B P(bar(A cup B))= (1)/(6), P(barA)= (1)/(4) and P(A ...

    Text Solution

    |

  3. In a vessel there are 5 red and 2 green balls. One ball is selected at...

    Text Solution

    |

  4. One balanced coin is tossed. If two head comes up then two balanced di...

    Text Solution

    |

  5. Probability of independent events is P(A(i))= (1)/(i+1). Where i = 1, ...

    Text Solution

    |

  6. A man is known to speak truth 3 out of 4 times. He throws a die and r...

    Text Solution

    |

  7. A purse contains 4 copper and 3 silver coins while another purse conta...

    Text Solution

    |

  8. In the box there are a white and b black balls. Two persons A and B ta...

    Text Solution

    |

  9. The probability of an event that person hits the target is (1)/(4). He...

    Text Solution

    |

  10. Each element of the second order determinant is 1 and - 1 then ..........

    Text Solution

    |

  11. A coin is tossed 2n times. During the toss any person can't get head a...

    Text Solution

    |

  12. For events E and F if P(E) le P(F) and P(E cap F) gt 0 then …………

    Text Solution

    |

  13. The probability that a student is not a swimmer is (4)/(5). The probab...

    Text Solution

    |

  14. The probability distribution of random variable X is as follows. ...

    Text Solution

    |

  15. Mean and variance of binomial distribution of random variance X are 4 ...

    Text Solution

    |

  16. In experiment probability that event A occurs in first trail is 0.4 th...

    Text Solution

    |

  17. Probability distribution of random variable X is as follows : The...

    Text Solution

    |

  18. A random variable X has the probability distribution: For the eve...

    Text Solution

    |

  19. If a random variable X can take all non- negative integral values and ...

    Text Solution

    |

  20. The mean and standard deviation of a random variable X are 10 and 5 re...

    Text Solution

    |