Question

    In a mixture of alcohol & water, 20 litres

    water is mixed due to which ratio changes from 5:4 to 1:4. Find initial quantity of mixture. (in litres)
    A 16.35 Correct Answer Incorrect Answer
    B 10.55 Correct Answer Incorrect Answer
    C 12.15 Correct Answer Incorrect Answer
    D 11.25 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    let initial quantity of alcohol be 5x litres & water be 4x litres.
    ATQ,
    5x/4x+20 = 1/4
    20x = 4x + 20 ⇒ x = 1.25
    Initial quantity of mixture = 5x + 4x = 11.25 liters

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