Multiple Choice Questions on The average weight of 8 persons increases by 2 5 kg when a new person comes in place of one them wei........... for CDS Exam Preparation

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Multiple Choice Questions

The average weight of 8 persons increases by 2 5 kg when a new person comes in place of one them wei...........

Quantitative Aptitude (CDS) Average
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    The average weight of 8 persons increases by 2.5 kg when a new person comes in place of one them weighing 65 kg. What might be the weight of the new person?

    65 kg

    Incorrect Answer

    70 kg

    Incorrect Answer

    85 kg

    Correct Answer

    92 kg

    Incorrect Answer
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    Explanation:

    Total weight increased = (8 x 2.5) kg = 20 kg
    Weight of new person = (65 + 20) kg = 85 kg

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