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11th Class Mental Ability Arithmetic Question Bank Question - Arithmetic

  • question_answer
    In a mixture 60 litres, the ratio of milk and water 2: 1. If the this ratio is to be 1:2, then the quantity of water to be further added is:

    A) 20 liters

    B) 30 liters

    C) 50 liters

    D) 60 liters

    E) None of these

    Correct Answer: D

    Solution :

    Explanation Option (d) is correct. Quantity of Milk \[=60\times (2/3)=40\,liters\] Quantity of water \[=60-40=20\,liters\] As per question we need to add water to get quantity 2: 1 \[\Rightarrow \]\[40/(20+x)=1/2\] \[\Rightarrow \]\[20+x=80\] \[\Rightarrow \] \[x=60\,liters\]


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