Question

How many iron balls, each of radius 1 cm, can be made from a sphere whose radius is 8 cm?

Answer 1

$\large\sf\:Volume\: of\: the \:spherical\: ball\: of \:radius \:8 cm\: = \frac{4}{3}\pi\:×8^3\:×c^3$

Also,

volume of each smaller spherical ball of radius 1cm = 4/3π x 13cm3.

Let n be the number of smaller balls that can be made. Then, the volume of the larger ball is equal to the sum of all the volumes of n smaller balls.

Hence,


=> n = = 512

Hence, the required number of balls = 512.

Answer 2

Answer = 512 iron balls can be made from sphere