Multiple Choice Questions on In 1 kg mixture of sand and iron 20 is iron How much sand should be added so that the proportion of ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

In 1 kg mixture of sand and iron 20 is iron How much sand should be added so that the proportion of ...........

Quantitative Aptitude ( CCS) Ratio, Proportion
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    In 1 kg mixture of sand and iron, 20% is iron. How much sand should be added so that the proportion of iron becomes 10%?
     
    1 kg
     
    Correct Answer
    200 gms
     
    Incorrect Answer
    800 gms
     
    Incorrect Answer

    1.8 kg

    Incorrect Answer
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    Explanation:
    In 1 kg mixture quantity of iron = 200 gm
    Let x gm sand should be added, then
    10% of (1000+ x) = 200
    x = 1000 gm = 1kg

    By: Sandeep Dubey
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