Multiple Choice Questions on How many kgs of pure sugar must be added to 40 kg of 4 solution of sugar and water to increase it to........... for CDS Exam Preparation

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Multiple Choice Questions

How many kgs of pure sugar must be added to 40 kg of 4 solution of sugar and water to increase it to...........

Quantitative Aptitude (CDS) Percentage
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    How many kgs of pure sugar must be added to 40 kg of 4% solution of sugar and water to increase it to a 10% solution?

     

    8/3kg
     

    Correct Answer

    8/5kg

    Incorrect Answer

    9/4kg

    Incorrect Answer

    7/3kg

    Incorrect Answer
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    Explanation:

    Amount of sugar in 40kg solution = (4/100)40 kg = 1.6 kg
    Let x kg of pure sugar be added 
    Then, (1.6 + x)/ (40 + x) 10/100
    160 + 100x = 400 + 10x
    90x = 240
    x = 8/3kg
    8/3 kg of pure sugar must be added 

    By: bhavesh kumar singh
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