Question

how many spherical balls of radius 1cm can be made from solid sphere of radius 8 cm
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Answer 1

Let n be the no. of spherical balls

Now,

volume of small spherical balls × n = volume of large spherical ball

4/3pie rcube × n= 4/3 pie rcube

4/3×22/7×1×1×1×n = 4/3×22/7×8×8×8

4.18×n = 2144.66

n = 2144.66÷4.18

n = 513.07(approx.)