Multiple Choice Questions on If the radius of a cylinder is doubled and height is halved what is the ratio between the new volume........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

If the radius of a cylinder is doubled and height is halved what is the ratio between the new volume...........

Quantitative Aptitude ( CCS) Mensuration 2D
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    If the radius of a cylinder is doubled and height is halved, what is the ratio between the new volume and the previous volume?

    1:2

    Incorrect Answer

    2:1

    Correct Answer

    2:3

    Incorrect Answer

    1:4

    Incorrect Answer
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    Explanation:

    New volume = (22/7)*4r^2*h/2 and old volume = (22/7)*r^2*h
    so ratio = 2:1

    By: Amit Kumar
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