Home
Class 12
MATHS
In a bag there are 20 cards 10 names A a...

In a bag there are 20 cards 10 names A and another 10 names B. Cards are drawn randomly one by one with replacement then find probability that second A comes before third B

A

`15/16`

B

`11/16`

C

`9/16`

D

`13/16`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • JEE MAIN

    JEE MAINS PREVIOUS YEAR|Exercise MATH|25 Videos
  • JEE MAIN

    JEE MAINS PREVIOUS YEAR|Exercise QUESTION|1 Videos
  • JEE MAIN

    JEE MAINS PREVIOUS YEAR|Exercise QUESTION|1 Videos
  • INVERSE TRIGONOMETRIC FUNCTIONS

    JEE MAINS PREVIOUS YEAR|Exercise All Questions|3 Videos
  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise Mathematic section B|10 Videos

Similar Questions

Explore conceptually related problems

Two cards are drawn one by one wihtout replacement. Find the probability that both are hearts.

There are 10 cards numbered 1 to 10 in a bag. Two cards are drawn one after other without replacement. The probability that their sum is odd, is

From a pack of 52 cards,4 are drawn one by one without replacement.Find the probability that all are aces (or,kings).

From a pack of 52 cards,two are drawn one by one without replacement.Find the probability that both of them are kings.

In a box,there are 20 cards,out of which 10 cards are labeled as A and remaining as B .Cards are drawn one after other with replacement,till a second A card is obtained.The probability that the second A card is obtained before third B card is

From a deck of cards,three cards are drawn on by one without replacement.Find the probability that each time it is a card of spade.

All the heart cards are taken out from a pack of playing cards. From these cards, cards are drawn one by one without replacement till the ace of hearts comes. The probability that ace comes in the 4th draw is

All the spades are taken out from a pack of cards.From these cards; cards are drawn one by one without replacement till the ace of spades comes.The probability that the ace comes in the 4th draw is

JEE MAINS PREVIOUS YEAR-JEE MAIN-MATHEMATICS
  1. A sphere of 10cm radius has a uniform thickness of ice around it. Ice ...

    Text Solution

    |

  2. Let C be the entroid of the triangle with vertices (3, -1) and ( 2, 4...

    Text Solution

    |

  3. In a bag there are 20 cards 10 names A and another 10 names B. Cards a...

    Text Solution

    |

  4. F(x) = {( (sin(a+2)x + sin x)/x , x lt 0), (b , x = 0), (((x + 3x^2 )^...

    Text Solution

    |

  5. If A=[[1,1,2],[1,3,4],[1,-1,3]], B=adj(A) and C=3A then (|adj(B)|)/(|C...

    Text Solution

    |

  6. If number of 5 digit numbers which can be formed without repeating any...

    Text Solution

    |

  7. If plane x + 4y - 2z = 1, x + 7y – 5z = beta, x + 5y + alphaz = 5 in...

    Text Solution

    |

  8. 2^(1/4). 4^(1/16). 8^(1/48) .........oo =

    Text Solution

    |

  9. If | (z - i)/(z + 2i)| = 1, |z| = 5/2 then the value of |z + 3i|

    Text Solution

    |

  10. Let the observations x1(1 le I le 10) satisfy the equations, Sigma(i=...

    Text Solution

    |

  11. If f'(x) = tan^(-1)(Sec x + tan x), x in (-pi/2 , pi/2) and f(0) = 0 t...

    Text Solution

    |

  12. If e1 and e2 are eccentricities of x^2 /18 + y^2 /4 = 1 and x^2 /9 - ...

    Text Solution

    |

  13. Find number of real roots of equation e^(4x) + e^(3x) - 4e^(2x) + e^(x...

    Text Solution

    |

  14. The value of int(0)^(2pi) (xsin^8x)/(sin^8x+cos^8x)"dx" id eaual to :

    Text Solution

    |

  15. If f(x) = a + bx + cx^2 where a, b, c in R then into ^1 f(x)dx

    Text Solution

    |

  16. If vec P = (a+1) hati + a hatj + a hatk vec Q = a hati + (a+1) hatj...

    Text Solution

    |

  17. Find the coefficient of x^4 in (1 + x + x^2)^10

    Text Solution

    |

  18. Find the number of solution of log(1/2) |sinx| = 2 - log(1/2) |cosx|, ...

    Text Solution

    |

  19. If for x ge 0, y = (x) is the solution of the differential equation, ...

    Text Solution

    |

  20. The prejection of the line segment joining the poing (1, -1, 3) and (2...

    Text Solution

    |