Question

A metallic sphere with radius 10cm is melted and recast to make balls with diamete 1cm . how many balls will be made

Answer 1

Hey Friend ✋✋✋


Radius of large sphere , R = 10 cm

small sphere , r = 1/2 cm

No of balls = Volume of large sphere / volume of 1 small sphere

= 4/3 πR³ / 4/3 πr³

= R³ / r³

= 10³ / (1/2)³

= 1000 / 1 / 8

= 8000 spheres


hope it helps

Answer 2

Volume of sphere=4/3 * pi* r*r*r
=4189 metre cube
Volume of 1 ball=0.52metre cube
No of balls=4189/0.52
Around 8055 balls