Solution:

Given dimensions of the cuboidal solid = 9 cm× 11 cm× 12 cm

Volume of the cuboidal solid = 9×11×12 = 1188 cm³

Diameter of shot = 3 cm

So radius of shot, r = 3/2 = 1.5 cm

Volume of shot = (4/3)r³

= (4/3)×1.5³

= (4/3)×(22/7)×1.5³

= 297/21 cm³

Number of shots made from cuboidal lead of solid = 1188÷(297/21)

= 1188×21/297

= 84

Hence the number of shots made from cuboidal lead of solid is 84.