Multiple Choice Questions on The diameter of the Moon is approximately onefourth of the diameter of the Earth What is the ratio a........... for CDS Exam Preparation

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Multiple Choice Questions

The diameter of the Moon is approximately onefourth of the diameter of the Earth What is the ratio a...........

Quantitative Aptitude (CDS) Mensuration 3D
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    The diameter of the Moon is approximately onefourth of the diameter of the Earth. What is the ratio (approximate) of their volumes?

    1:16

    Incorrect Answer

    1:64

    Correct Answer

    1:4

    Incorrect Answer

    1:128

    Incorrect Answer
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    Explanation:

    The diameter of Moon is approximately one-fourth of the diameter of Earth.
    Let radius of Moon =r,
    Then radius of Earth = 4r
    Required ratio =Volume of Moon/Volume of Earth
    =4/3πr3/4/3π(4r)3 =1/64
    = 1: 64

    By: Munesh Kumari
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