Spherical metal ball of radius 6 cm is melted and casted into small spherical balls having diameter 6 mm. How many small balls can be casted
8000
1000
6000
2000
Explanation:
$\dfrac{\dfrac{4}{3}\pi R^{3}}{\dfrac{4}{3}\pi r^{3}}$
$=\dfrac{60\times 60\times 60}{3\times3\times3}$
$=20^{3}$
=8000 smaller balls
$\dfrac{\dfrac{4}{3}\pi R^{3}}{\dfrac{4}{3}\pi r^{3}}$
$=\dfrac{60\times 60\times 60}{3\times3\times3}$
$=20^{3}$
=8000 smaller balls