27 spheres of radius 'r' were melted and one new sphere was formed. what is radius of new sphere formed??
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Volume. Of 27 solid sphere =27×4/3pie r^3
Volume of new sphere =4/3pie r^3
4/3pie r^3 =27×4/3pie r^3 =r^3 =27r^3 =3R^3
R=3R
Volume of new sphere =4/3pie r^3
4/3pie r^3 =27×4/3pie r^3 =r^3 =27r^3 =3R^3
R=3R
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this is ur answer as volume of both sphere will be same by that we can find the answere
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