If the radius of each bullet is 0.2 cm then the number of bullets can be made from a sphere of 8cm radius is

Dear Student,

Considering a bullet made is a sphere then volume of bullet is 43πr3.
Volume of bigger sphere is 43πr3 = 43π(8)3 = 43π(512)
Volume of a bullet is  43πr3 = 43π(0.2)3 = 43π(0.008)
Volume of n bullets is equal to volume of bigger sphere, so

 n43π(0.008) = 43π(512)or, n = 5120.008or, n= 512 * 10008 = 64000

So 64000 bullets can be made from the sphere.


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