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A solid sphere of radius 3cm is melted to recast into small spherical ball each of diameter 0.6cm. Find the number of balls |
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Answer» Radius of bigger sphere(R)-3cm Radius of smaller sphere(r)-0.3cm No. Of smaller sphere obtained=volume of bigger sphere/volume of smaller sphere =4/3πR×R×R/4/3πr×r×r =R×R×R/r×r×r =3×3×3/0.3×0.3×0.3 =1000 balls |
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