Multiple Choice Questions on In a club of 60 member debate competition 36 won on pollution 28 got won on education 20 members did........... for NDA Exam Preparation

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Multiple Choice Questions

In a club of 60 member debate competition 36 won on pollution 28 got won on education 20 members did...........

Mathematics (NDA) Set theory
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    In a club of 60 member debate, competition 36 won on pollution,28 got won on education,20 members did not win in both competitions. How many won in both debates?

    21

    Incorrect Answer

    23

    Incorrect Answer

    27

    Incorrect Answer

    24

    Correct Answer
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    Explanation:

    N=60

    n(P)=36

    n(E)=28

    n(P?E)=60-20

    =40

    n(P ?E)=n(P)+n(E )-n(P?E)

    40  =36+28- n(P?E)

    n(P?E)=24

    By: bhavesh kumar singh
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