Home
Class 11
MATHS
Let A and B be two sets such tat : n(A)=...

Let A and B be two sets such tat `: n(A)=20 ,\ n(AuuB)=42\ a n d\ n(AnnB)=4.` Find `n(A-B)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • RELATIONS

    RD SHARMA ENGLISH|Exercise All Questions|130 Videos

  • SINE AND COSINE FORMULAE AND THEIR APPLICATIONS

    RD SHARMA ENGLISH|Exercise All Questions|119 Videos

Similar Questions

Explore conceptually related problems

Let A and B be two sets such tat : n(A)=20 ,\ n(AuuB)=42\ a n d\ n(AnnB)=4. Find n(B)

Let A and B be two sets such tat : n(A)=20 ,\ n(AuuB)=42\ a n d\ n(AnnB)=4. Find n(B-A)

If A and B are two sets such that n(A)=20 ,\ n(B)=24\ a n d\ n(AuuB)=40 , then write n(AnnB)dot

If A and B are two sets such that n(AuuB)=50 ,\ n(A)=20\ a n d\ n(B)=32 ,\ f i n d\ n(AnnB)dot

A and B two sets such that n(A)=3 and n(B)=6 , then

A and B are two sets such that n(A) = 20, n(B) = 30 and n (A cup B) = 48, find n(A - B)

If Aa n dB are two sets such that n(A)=150 ,n(B)=250 a n d n(AuuB)=300. Find n(A-B) a n d n(B-A)dot

Let A and B be two sets such that n(A)=16 ,\ n(B)=14 , n(AuuB)=25. Then n(AnnB) is equal to 30 b. 50 c. 5 d. none of these

If A and B are two sets such that n(A)=30, n(B)=26 and n(A cup B)=50, then find (i) n(A-B) (ii) n(A cap B)

A\ a n d\ B are two events such that P(A)=0. 54 ,\ P(B)=0. 69\ a n d\ P(AnnB)=0. 3.\ Find P(AuuB)

RD SHARMA ENGLISH-SETS-All Questions
  1. In a group of 70 people, 37 like coffee, 52 like tea and each perso...

    Text Solution

    |

  2. Let A and B be two sets such tat : n(A)=20 ,\ n(AuuB)=42\ a n d\ n(Ann...

    Text Solution

    |

  3. Let A and B be two sets such tat : n(A)=20 ,\ n(AuuB)=42\ a n d\ n(Ann...

    Text Solution

    |

  4. Let A and B be two sets such tat : n(A)=20 ,\ n(AuuB)=42\ a n d\ n(Ann...

    Text Solution

    |

  5. A survey shows that 76% of the Indians like oranges, whereas 62%like ...

    Text Solution

    |

  6. In a group of 950 persons, 750 can speak Hindi and 460 can speak En...

    Text Solution

    |

  7. In a group of 1000 people all of whom speak atleast one of Bengali or ...

    Text Solution

    |

  8. In a survey of 100 persons it was sound that 28 read magazine A, 30 re...

    Text Solution

    |

  9. In a group of 50 persons, 14 drink tea but not coffee and 30 drink tea...

    Text Solution

    |

  10. In a survey of 100 students, how many of students studying the various...

    Text Solution

    |

  11. Write the number of elements in the power set of null set.

    Text Solution

    |

  12. Let A={x ; x in N ,\ x is a multiple of 3} and B={x : x in N\ a n d\...

    Text Solution

    |

  13. If A and B two sets containing 3 and 6 elements respectively and if mi...

    Text Solution

    |

  14. If A={x in C : x^2=1}\ a n d\ B={x in C : x^4=1} , then write A-B\ a...

    Text Solution

    |

  15. Let A and B be two sets having 4 and 7 elements respectively. Then ...

    Text Solution

    |

  16. If A={(x ,\ y): y=1/x ,\ 0!=x in R}a n d\ B={(x , y): y=-x ,\ x in R...

    Text Solution

    |

  17. If A={(x ,\ y): y=e^x ,\ x in R}a n d\ B={(x , y): y=e^(-x),\ x in R...

    Text Solution

    |

  18. If A and B are two sets such that n(A)=20 ,\ n(B)=24\ a n d\ n(AuuB)=4...

    Text Solution

    |

  19. If A and B are two sets such that n(A)=115 ,\ n(B)=326 ,\ n(A-B)=47 , ...

    Text Solution

    |

  20. For any set A ,(A ')' is equal to a.A ' b. A c. varphi d. none of thes...

    Text Solution

    |