How many shots each having diameter Medium 3 cm can be made from a cuboidal lead solid of dimensions

Question

Philoid · Accepted Answer

Volume of cuboid = lbh

where, l = length, b = breadth and h = height

For cuboidal lead:

Length, l = 9 cm

Breadth, b = 11 cm

Height, h = 12 cm

Volume of lead = 9(11)(12) = 1188 cm³

Volume of sphere

where r = radius of sphere

For spherical shots,

Diameter = 3 cm

Radius, r = 1.5 cm

[As radius = diameter/2]

Volume of one shot

Now,

So, 84 bullets can be made from lead.