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8th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-18

  • question_answer
    If \[n\,\,(P-Q)=28,\] \[n\,\,(P\cup Q)=80\] and \[n\,\,(P\cap Q)=35,\] then the value of \[n(Q)\] is

    A)  17                                 

    B)  52

    C)  42                                 

    D)  38

    E)  None of these

    Correct Answer: B

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