Multiple Choice Questions on In a school 60 boys made an average score of 55 marks and 40 girls made an average of 45 marks What ........... for CDS Exam Preparation

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Multiple Choice Questions

In a school 60 boys made an average score of 55 marks and 40 girls made an average of 45 marks What ...........

Quantitative Aptitude (CDS) Average
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    In a school,60 boys made an average score of 55 marks and 40 girls made an average of 45 marks.What is the overall average score of all the students.?

    47

    Incorrect Answer

    49

    Incorrect Answer

    51

    Correct Answer

    53

    Incorrect Answer
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    Explanation:

    Number of boys = 60  and average = 55
    number of girls = 49  and average = 45
    = (60×55+40×45)/ 100
    = 51 
    overall average = 51 

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