# A solid sphere of radius 3 cm is melted and then recast into small spherical balls each of diameter 0.6 cm. Find the number of small balls thus obtained. Please answer soon, need it urgently for exam preparation!!!!

2
by manasviranjan

2015-02-08T14:58:55+05:30

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Radius of bigger sphere(R) = 3 cm
radius of smaller balls(r) = 0.6/2 = 0.3 cm
let the number of small balls = n

n×volume of a small balls = volume of bigger sphere

Number of small balls is 1000.
Thanxx for the help!! Grateful!!;)
happy to help!!:)
2015-02-08T15:33:03+05:30
Radius of bigger sphere(R)-3cm Radius of smaller sphere(r)-0.3cm No. Of smaller sphere obtained=volume of bigger sphere/volume of smaller sphere =4/3πR×R×R/4/3πr×r×r =R×R×R/r×r×r =3×3×3/0.3×0.3×0.3 =1000 balls
Thanxx for helping!! Appreciated!!;)
Yw dear