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    Question

    A container has only two types (P and Q) of oil in the

    ratio 7:3 respectively. When 80 litre of oil Q is added to the  container the quantity of oil P becomes 25% of that of oil Q. Find the capacity of the  container if it becomes full after addition of 80 litre of oil.
    A 225 litres Correct Answer Incorrect Answer
    B 105 litres Correct Answer Incorrect Answer
    C 112 litres Correct Answer Incorrect Answer
    D 180 litres Correct Answer Incorrect Answer

    Solution

    Let the quantity of oil in the container be 7x and 3x litres respectively. According to the question, => 7x = 0.25 × (3x + 80) => 6.25x = 20 => x = 3.2 Total capacity of the container = 7x + 3x + 80 = 112 litres.

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