Question

    A mixture of 60 liters contains milk and water in the

    ratio 7:5. How much milk should be added to make the ratio 3:1?
    A 15 liters Correct Answer Incorrect Answer
    B 20 liters Correct Answer Incorrect Answer
    C 25 liters Correct Answer Incorrect Answer
    D 40 liters Correct Answer Incorrect Answer

    Solution

    Initial milk = (7/12) × 60 = 35 liters  Initial water = (5/12) × 60 = 25 liters  Let x liters of milk be added.  New ratio = (35 + x)/25 = 3/1  35 + x = 75  x = 40 liters Answer: d) 40 liters

    Practice Next