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NTSE Sample Paper NTSE SAT Practice Test-18

  • question_answer
    A mixture contains milk and water in the  ratio 4 : 3. If 5 litres of water is added to this  mixture, the ratio of milk and water becomes 4:5. Find quantity of milk in the mixture.

    A) 14 litres            

    B)        10 litres

    C) 15 litres            

    D)        18 litres

    Correct Answer: B

    Solution :

    [b] Milk 4x litres; water 3x litres. \[\Rightarrow \,\frac{4x}{3x+5}=\frac{4}{5}\,\,gives\,\,x=2.5\] \[\therefore \]  Contents of milk \[=4\times 2.5=10\]litres


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