Multiple Choice Questions on A solid sphere of radius 20 cm is melted to form 12 spherical balls Find the radius of each of the b........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A solid sphere of radius 20 cm is melted to form 12 spherical balls Find the radius of each of the b...........

Quantitative Aptitude ( CCS) Mensuration 3D
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    A solid sphere of radius 20 cm is melted to form 12 spherical balls. Find the radius of each of the ball.

    12 cm

    Incorrect Answer

    8 cm

    Incorrect Answer

    20 cm

    Incorrect Answer

    10 cm

    Correct Answer
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    Explanation:

    Volume of each of the 8 ball = [(4/3)*(22/7)*203]/8
    So (4/3)*(22/7)*r3
    = [(4/3)*(22/7)*203]/8
    Solve, r = 10

    By: Amit Kumar
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