a metallic sphere of diameter 3 cm is melted and recast into three spheres. the radius of one of these is there is 0.75 cm and that of another is 1.25cm determine the radius of the third sphere. [answer should be 1cm]
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Given that radius of the spherical ball r = 3cm. = 792/7 cm^3. ... r = 2.5cm. Therefore the radius of the third ball = 2.5cm.
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