Question

5. The diameter of a solid lead sphere is 14
cm. By melting this sphere how many
spheres of radius 3.5 cm can be formed ?
[W.B.M. 19941​

Answer 1

Answer:

8

Step-by-step explanation:

Volume of sphere=4/3pi×r^3

CASE-1:-

Given diameter=14

So r=7,volume on solving=1437.3

CASE-2:-

Given radius r'=3.5,volume on solving=179.6

Now dividing volume in case 1 and 2

We get,1437.3/179.6=8.002

Therefore 8 spheres can be formed(approximately)