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    Question

    A container holds 160 litres of a solution containing sugar

    and water in the ratio 3:5. How many litres of sugar should be added to make the new ratio 4:5?
    A 25 litres Correct Answer Incorrect Answer
    B 35 litres Correct Answer Incorrect Answer
    C 20 litres Correct Answer Incorrect Answer
    D 12 litres Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Sugar = (3/8) × 160 = 60 litres

    Water = (5/8) × 160 = 100 litres

    Let the amount of sugar to be added be x litres

    Then, (60 + x) : 100 = 4 : 5

    So, 60 + x = (4/5) × 100 = 80

    x = 80 - 60 = 20 litres

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