Question

a cylinder is made of lead whose radius is 4 cm and height is 10 cm. By melting this, how many spheres of radius 2 cm, can be formed?

Answer 1

$volume \: of \: cylinder \\ = \pi \times {4}^{2} \times 10 = 160\pi \\ volume \: of \: sphere \\ = \frac{4}{3} \pi \times {2}^{3} = \frac{32}{3} \pi \\ number \: of \: spheres = \frac{160\pi}{\frac{32}{3} \pi} = 15$

Answer 2

Your answer !!

Refer to the attachment !!

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