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    Question

    A solution ‘ABC’ has 15% sugar. Another solution

    ‘XYZ’ has 5% sugar. How many liters of the solution ‘XYZ’ must be added to the 25 litre of solution ‘ABC’ to make a solution of 10% sugar?
    A 40 litres Correct Answer Incorrect Answer
    B 25 litres Correct Answer Incorrect Answer
    C 16 litres Correct Answer Incorrect Answer
    D 8 litres Correct Answer Incorrect Answer
    E 20 litres Correct Answer Incorrect Answer

    Solution

    Let required amount of solution ‘XYZ’ to be added = x litre Then, => (15 × 25 + 5x)/(25 + x) = 10 => 375 + 5x = 250 + 10x => 5x = 125 => x = 25

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