Two spheres of same metal weight 1kg and 7kg with the smaller sphere having a radius of 3 cm are recast into a big sphere. Find the radius of the recasted sphere.
Asked by Jerlin George | 18th Mar, 2015, 12:27: AM
Total weight of recasted sphere is 1kg+7kg=8kg
Radius of the small metal 'r'=3 cm.
Hence, density of the metal
Let the radius of the recasted metal be 'R'.
Answered by Vimala Ramamurthy | 20th Mar, 2015, 10:50: AM
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