Multiple Choice Questions on A solid sphere of radius 8cm is melted to form 1 cm radius solid spheres Find the number of su........... for CDS Exam Preparation

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Multiple Choice Questions

A solid sphere of radius 8cm is melted to form 1 cm radius solid spheres Find the number of su...........

Quantitative Aptitude (CDS) Mensuration 3D
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     A solid sphere of radius 8cm is melted to form 1 cm radius solid spheres. Find the number of such small spheres formed? 

    400

    Incorrect Answer

    512

    Correct Answer

    500

    Incorrect Answer

    none of  these

    Incorrect Answer
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    Explanation:

    Volume of big sphere=4/3 ×3.14×8^3=2143.67cm^3
    Volume of small sphere=n×4/3 × 3.14×1
    N×4/3  ×3.14=2143.67
    N=512

    By: bhavesh kumar singh
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