Home
Class 8
MATHS
If n(A uu B) = 32, n(B) = 12and n(A nn B...

If `n(A uu B) = 32, n(B) = 12`and `n(A nn B) = 5`, then `n(A) = `

A

27

B

29

C

25

D

20

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SETS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL 2) |21 Videos

  • SETS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL 3) |8 Videos

  • SETS

    PEARSON IIT JEE FOUNDATION|Exercise TEST YOUR CONCEPTS ( Essay Type Questions)|5 Videos

  • REAL NUMBERS AND LCM AND HCF

    PEARSON IIT JEE FOUNDATION|Exercise level -11|1 Videos

  • SIMPLE INTEREST AND COMPOUND INTEREST

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION Level 3|9 Videos

Similar Questions

Explore conceptually related problems

If n(A-B) = 17, n(B -A) = 13 and n(A nn B) = 19 , then n(A uu B) = "___" .

If n (A) = 65, n(B) = 32 and n (A nn B) = 14, then n (A Delta B) equals

If n(A) = 44, n(B) = 28 and n(A uu B) = 56 , then find n(B - A) =

If n(A) = 3, n(B) = 5 and n(A uu B) = 7 , then find n(A nn B) .

If n(A) = 6 and n(B) = 8 and n(A nn B) = 4 , then find n(A Delta B) . The following are the step involved in solving the above problem . Arrange them in sequnential order. (a) n (A uu B) = n(A) + n(B) - n(A nn B) (b) n(A uu B) = 10 (c ) n(A uu B) =6+8-4 (d) n(A Delta B) = 10-4= 6 (e) n(A Delta B) = n(A uu B) - n(A nn B) .

If n (A) = 120 ,n (B) = 250 and n (A- B) = 52, then find n (A uu B)

If n(A) denotes the number of elements in set A and if n(A) = 4, n(B) = 5 and n(A nn B) =3 then n[(A xx B) nn (B xx A)]=

PEARSON IIT JEE FOUNDATION-SETS-CONCEPT APPLICATION (LEVEL 1)
  1. If n(A) = 44, n(B) = 28 and n(A uu B) = 56, then find n(P - Q) =

    Text Solution

    |

  2. If n(P) = 20, n(Q) = 18 and n(Puu Q) = 27, then n(P - Q) =

    Text Solution

    |

  3. In an examiniation 55% of the students failed in chemistry, 47% faile...

    Text Solution

    |

  4. If n(PnnQ) = 23, n(PuuQ) = 57 and n(Q-P) = 26, then n(P -Q) = "".

    Text Solution

    |

  5. If n(A-B) = 17, n(B -A) = 13 and n(A nn B) = 19, then n(A uu B) = "".

    Text Solution

    |

  6. If P and Q are sets having 5 elements in com-mon, then how many elemen...

    Text Solution

    |

  7. If (A uu B) nn (A nn B) = A , then which of the following is true ?

    Text Solution

    |

  8. If X DeltaY=varphi, then which of the following is true

    Text Solution

    |

  9. If A DeltaB = {1,2,3,4,5,6,7,8,9,11,13} and B = {4,5,6,8,11,13} then f...

    Text Solution

    |

  10. If n(P) = 13, then for which of the following values of n(Q) may resul...

    Text Solution

    |

  11. If A and B and C are three non-empty sets, then which of the following...

    Text Solution

    |

  12. If A and B are two non - empty equivalent sets, then a possible value ...

    Text Solution

    |

  13. If n(A uu B) = 32, n(B) = 12and n(A nn B) = 5, then n(A) =

    Text Solution

    |

  14. In a class of 75 students, 40 take milk, 50 take tea and 30 take both....

    Text Solution

    |

  15. Which of the following is not true ?

    Text Solution

    |

  16. If n(A xx B) = 24, n(B xx C) = 36 , and n(B) = 3, then n(A xx C) =

    Text Solution

    |

  17. Given that A = {2,4,6,7,8} and B = {1,2,3,4} Find A Delta B. The foll...

    Text Solution

    |

  18. A = {x : 2 lt x lt 8 " and " x in N} and B = {x:3 lt x lt 9 " and " x...

    Text Solution

    |

  19. If n(A) = 6 and n(B) = 8 and n(A nn B) = 4, then find n(A Delta B). ...

    Text Solution

    |

  20. If A and B are two non-empty sets and A - B is a null set, then "".

    Text Solution

    |