Home
Class 7
MATHS
If mu={0,1,2,3,4,,5,6,7,8,9} X{2,3,5,7} ...

If `mu`={0,1,2,3,4,,5,6,7,8,9} X{2,3,5,7} and y={2,5,8} Find `n(X' cup Y')`

A

8

B

7

C

6

D

9

Text Solution

Verified by Experts

The correct Answer is:
A
Given ,`mu={1,2,3,4,…9}`
X={2,3,4,5,7} and Y={2,5,8}
X'={0,1,4,6,7,9,}
`(X cup Y)={16,25,36,49,81}`
`X' cup Y'={0,1,3,4,6,7,8,9}`
`n(X' cup Y')=8`
Hence , the correct option is (a) .
Promotional Banner

Topper's Solved these Questions

  • Set theory

    PEARSON IIT JEE FOUNDATION|Exercise Concept Application Level 3|19 Videos

  • Set theory

    PEARSON IIT JEE FOUNDATION|Exercise ASSESSMENT TEST Test 1|12 Videos

  • Set theory

    PEARSON IIT JEE FOUNDATION|Exercise Concept Application Level 1|20 Videos

  • RATIO AND ITS APPLICATIONS

    PEARSON IIT JEE FOUNDATION|Exercise ASSESSMENT TESTS (TEST 2)|12 Videos

  • SIMPLE INTEREST AND COMPOUND INTEREST

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|9 Videos

Similar Questions

Explore conceptually related problems

If x={0,1,2,3,4,5,6,7,8,9,10} and Y={ 2,4,6,8,10} then find X-Y.

If x={0,1,2,3,4,5,6,7,8,9,10} and Y={ 1,3,5,7,9} then X-Y=___.

If X={1,2,3,{4,5},6,{7,8,9,10} then {4,5} sub X

If mu ={1,2,3,4,5,6,7,8) and A={2,5,8} then find n(A)

PEARSON IIT JEE FOUNDATION-Set theory-Concept Application Level 2
  1. If , mu={All prime number } and O={all odd prime number },find n(O).

    Text Solution

    |

  2. mu={Two digit perfect squases for which sum of digits is a perfect squ...

    Text Solution

    |

  3. If mu={0,1,2,3,4,,5,6,7,8,9} X{2,3,5,7} and y={2,5,8} Find n(X' cup Y'...

    Text Solution

    |

  4. A={1,2,3,4,5,6,7,8,9}, B={2,4,6,8} C={1,3,5,7,8} If P={Factor of...

    Text Solution

    |

  5. S=abcdef….z, mu = {Vowels in S} and B={ Vowels in even positions of S}...

    Text Solution

    |

  6. If N is natural number A= Factors of N} and B{Multiples of N} , then n...

    Text Solution

    |

  7. If mu {Natural number up to 32 } ,C={2,5,8,11,…..32} and D={ 2,4,6,8,…...

    Text Solution

    |

  8. E= { Natural numbers up to 30 } X={x/x = 4y +2 ,y in E} Find n(X...

    Text Solution

    |

  9. X= { The units digit of the sum of 10 consective natural numbers } Fin...

    Text Solution

    |

  10. If A=(1,2,3,4,8}, then which of the following can be concluded ?

    Text Solution

    |

  11. If A and B are two disjoint sets n(A)+n(B)=24 then find n(A cup B)

    Text Solution

    |

  12. If A= {1,2,3,4} and B={2,4,8,9} then ( A-B )cup (B-A)=.

    Text Solution

    |

  13. In the question above ,find (A-B) cap ((B-A)

    Text Solution

    |

  14. Which of the following is a/are false ?

    Text Solution

    |

  15. Which of the following is /are true ?

    Text Solution

    |

  16. If two sets are disjoint , then .

    Text Solution

    |

  17. If Y={a,e,{I,o} u} then which of the following is a correct statement...

    Text Solution

    |

  18. If U={ x:x is an alphabet } and C={x:x is a consonant } then C=.

    Text Solution

    |

  19. If =O={0} then the number of all possible subsets of O is .

    Text Solution

    |

  20. If n(A)=10,n(A cap B)=5 and n(A cup B)=35 then n(B) =.

    Text Solution

    |