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Railways Quantitative Aptitude Percentage Sample Paper Percentage Sample Test Paper-8

  • question_answer
    A mixture of 70 litres of wine and water contains 10% of water. How much water must be added to make the water 12.5% of the resulting mixture?

    A)  1 litre  

    B)  2 litre

    C)  3 litre  

    D)  4 litre

    Correct Answer: B

    Solution :

    [b] Let the required quantity of water = x litres According to the questions, \[70\times \frac{10}{100}+x=(70+x)\times \frac{12.5}{100}\] \[\Rightarrow \,\,\,\,\,x=2\]


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