Multiple Choice Questions on The average weight of 18 students in a class is 52 5 kg and that of the remaining 6 students is 43 2........... for SEBI Grade A ( Officer) Exam Preparation

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Multiple Choice Questions

The average weight of 18 students in a class is 52 5 kg and that of the remaining 6 students is 43 2...........

Quantitative Aptitude ( Phase -I) Average
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    The average weight of 18 students in a class is 52.5 kg and that of the remaining 6 students is 43.25 kg. Find the average weights of all the students in the class.

    49kg

    Incorrect Answer

    47.65kg

    Incorrect Answer

    50.18kg

    Correct Answer

    51.2kg

    Incorrect Answer
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    Explanation:

    Solution: 
    The average weights of all the students in the class
    =[(18*52.5) +(6*43.25)]/(18+6)
    =945+259.5 /24
    =50.18kg.

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