Multiple Choice Questions on In a club of 50 members In singing competition 26 got the first position 21 got the first position i........... for NDA Exam Preparation

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Multiple Choice Questions

In a club of 50 members In singing competition 26 got the first position 21 got the first position i...........

Mathematics (NDA) Set theory
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    In a club of 50 members,In singing competition 26 got the first position,21 got the first position in acting,17 members did not get first in both competitions.How many got first in both examinations?

    16

    Incorrect Answer

    15

    Incorrect Answer

    14

    Correct Answer

    18

    Incorrect Answer
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    Explanation:

    N=50 member

    |S1|=26

    |A1|=21

    17 member did not get any position

    |S1?A1|=50-17

    =33

    33= |S1|+|A1|-|S1?A1|

    |S1 ?A1| =26+21-33

    =14

    By: bhavesh kumar singh
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