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    Question

    150 litres of mixture β€˜A’ (milk + water) contains 36

    litres more water than milk. If 50% of mixture β€˜A’, 70 litres of milk and 60 litres of water are added in an empty jar, then the quantity of milk is what percentage of the quantity of water in the jar?
    A 89% Correct Answer Incorrect Answer
    B 109% Correct Answer Incorrect Answer
    C 90% Correct Answer Incorrect Answer
    D 119% Correct Answer Incorrect Answer

    Solution

    Let the quantity of milk in mixture β€˜A’ = β€˜y’ litres Then, quantity of water in mixture β€˜A’ = (y + 36) litres So, y + y + 36 = 150 Or, 2y = 150 – 36 = 114 Or, y = 114/2 = 57 So, quantity of milk in mixture β€˜A’ = 57 litres And, quantity of water in mixture β€˜A’ = 57 + 36 = 93 litres Quantity of milk in 50% of mixture β€˜A’ = 57 Γ— 0.50 = 28.5 litres Quantity of water in 50% of mixture β€˜A’ = 60 Γ— 0.50 = 30 litres So, quantity of milk in the jar = 28.5 + 70 = 98.4 litres Quantity of water in the jar = 60 + 30 = 90 litres So, required percentage = (98.5/90) Γ— 100 β‰ˆ 109%

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