Multiple Choice Questions on The area of sphere is 784p find the radius of the cylinder whose height is 6 m The volume of the cyl........... for CDS Exam Preparation

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Multiple Choice Questions

The area of sphere is 784p find the radius of the cylinder whose height is 6 m The volume of the cyl...........

Quantitative Aptitude (CDS) Mensuration 3D
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    The area of sphere is 784p.find the radius of the cylinder whose height is 6 m. The volume of the cylinder and sphere is equal? 

    18m

    Incorrect Answer

    17m

    Incorrect Answer

    24.87 m

    Correct Answer

    19m

    Incorrect Answer
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    Explanation:

    Area of sphere=4×p×r^2
    4×p×r^2 =784p
    r^2=196
    r=14
    Volume of sphere=volume of cylinder
    4/3  pr^3  = pR^2h
    R^2  =4/3  ×14^3/6
    R^2  =4/18  ×14^3
    R^2  =609.77
    R=24.87 m

    By: bhavesh kumar singh
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