metallic sphere of radius 4.2 cms. is melted and recast into the shape – InterviewSolution

1.	metallic sphere of radius 4.2 cms. is melted and recast into the shape of a cylinderof radius 6 cms. Height of the resultant cylinder would be: Ile110 cms/1103.84 cms/ 3.84rt. 30 cms/30 ft. 2.74 cms/ 2.74
Answer» If a solid is recasted in any other solid the volume remains the same.so,vol.of sphere=vol. of cylinder•4/3πr cube= 2πr square ×h 4/3×22/7×42/10×42/10×42/10 = 2×22/7×6×6×hh= 98.784/36H=2.744 cm

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