A solid sphere of radius 12 cm is melted and recast into spherical balls of radius 1 cm find the number of balls
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No. Of spheres formed =vol of big sphere/volume of small sphere
Vol of big sphere = 4/3pie ×r^3=4/3×22/7×12×12×12=7241.14cm^3
Vol of small =4/3×22/7×1×1×1=4.19cm^3
No. Of spheres =1728 spheres
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