Home
Class 12
MATHS
A problem in mathematics is given to 4 s...

A problem in mathematics is given to 4 students whose chances of solving individually are `(1)/(2),(1)/(3),(1)/(4)" and " (1)/(5)`. The probability that the problem will be solved at least by once students is

A

`(2)/(3)`

B

`(3)/(5)`

C

`(4)/(5)`

D

`(3)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • QUESTIONS PAPER -2019

    CHHAYA PUBLICATION|Exercise HS 2019 PART -B|10 Videos
  • QUESTION PAPER 2017

    CHHAYA PUBLICATION|Exercise UNIT-4|4 Videos
  • RANDOM VARIABLE AND ITS DISTRIBUTION

    CHHAYA PUBLICATION|Exercise Assertion Reason Type|8 Videos

Similar Questions

Explore conceptually related problems

A problem on mathematics is given to three students A, B, C whose probabilities of solving it are (1)/(3), (2)/(5) and (3)/(4) respectively. Find the probability that the problem is solved.

a problem on mathematics is given to three students A,B,C whose probabilities of solving it are 1/3,2/5and 3/4 . Find the probability that the problem is solved.

A problem in mathematics is given to three students A, B and C and their respective probability of solving the problem is (1)/(2),(1)/(3) and (1)/(4) . Then the probability that the problem is solved, is -

A problem in mathematics is given to two students A and B. The probability of solving the problem is (3)/(4) and (5)/(7) respectively. If the probability that the problem is solved by both of them is (2n)/(21) , then the value of n is -

A problem of Statistics is given to three students A, B and C, where chances of solving the problem individually are 1/2, 1/3 and 1/4 respectively. Find the probability that exactly one of them solve the problem.

A problem in mathematics is given to three students A ,B ,C and their respective probability of solving the problem is 1/2, 1/3 and 1/4. Probability that the problem is solved is 3//4 b. 1//2 c. 2//3 d. 1//3

The probability that 3 students can solve a mathematics problem independently is (1)/(3), (1)/(4) and (1)/(5) respectively. The chance that the problem is solved is

The probability of' the solving a problems in mathematics of three students are 1/3,1/5,1/6 . If they try to solve the problem together, find the probability that the problem is solved by at least one student.

Find the probability that in a family of 4 children there will be at least 1 boy and 1 girl.

If odds against solving a question by three students are 2:1, 5:2, and 5:3, respectively, then probability that the question is solved only by one student is

CHHAYA PUBLICATION-QUESTIONS PAPER -2019-WBJEE 2019
  1. Let: RtoR be defined by f(x)=x^2-(x^2)/(1+x^2) for all x inR. Then

    Text Solution

    |

  2. Let the relation p be defined on R as apb iff 1+abgt0. Then

    Text Solution

    |

  3. A problem in mathematics is given to 4 students whose chances of solvi...

    Text Solution

    |

  4. If X is a random variable such that sigma(X)=2.6," then "sigma(1-4X) i...

    Text Solution

    |

  5. The direction ration of the normal to the plane passing through the po...

    Text Solution

    |

  6. The equation of the plane, which bisects the line joining the points (...

    Text Solution

    |

  7. The limit of the interior angle of the regular polygon of n sides as n...

    Text Solution

    |

  8. Let f(x)gt0 for all x and f'(x) exists for all x. If f is the inverse ...

    Text Solution

    |

  9. Consider the function f(x)cosx^2. Then

    Text Solution

    |

  10. lim(xto0+)(e^x+x)^((1)/(x))

    Text Solution

    |

  11. Let f(x) be a derivable function f'(x)gtf(x)" and " f(0)=0. Then

    Text Solution

    |

  12. Let f:[1,3] toR be a continuous function that is differentiable in (1,...

    Text Solution

    |

  13. Let a=min(x^2+2x+3:x inR) and b=lim(thetato0)(1-cos theta)/(theta^2). ...

    Text Solution

    |

  14. Let agtbgt0 and I(n)=a^((1)/n)-b^((1)/(n)),J(n)=(a-b)^((1/(n)) for all...

    Text Solution

    |

  15. If A and B are independent events , then P(B/A)=

    Text Solution

    |

  16. The position vectors of the points A,B,C and D are 3hat(i)-2hat(j)-hat...

    Text Solution

    |

  17. Find value of sin^-1(cos((33pi)/5))

    Text Solution

    |

  18. The system of equations lambdax+y+3z=0,2x+muy-z=0,5x+7y+z=0 has infini...

    Text Solution

    |

  19. Let f:XtoY and A,B are non-void subsets of Y, then

    Text Solution

    |

  20. Let S,T,U be three non-void sets and f:StoT,g:TtoU be so that g@f:StoU...

    Text Solution

    |