Question

    TYPE 15

    The ratio of the number of pencils to pens in a box is

    12:5. The number of pencils is increased by 75% and the number of pens is decreased by 60%. Find the new ratio of pencils to pens in the box.
    A 27:2 Correct Answer Incorrect Answer
    B 21:4 Correct Answer Incorrect Answer
    C 16:5 Correct Answer Incorrect Answer
    D 21:2 Correct Answer Incorrect Answer
    E 9:2 Correct Answer Incorrect Answer

    Solution

    Let the original number of pencils and pens in the bag be 12x and 5x respectively. Required ratio = (1.75 x 12x) : (0.4 x 5x) = 21:2

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