Question

a cube of lead with edge measuring 6 cm each is melted and formed into 27 equal cube. what will be the length of the edge of the new cube ?

Answer 1

Hope this helps you...^_^

Answer 2

as we know that when anything is melted it's volume remains constant,now volume of original cube=(6)^3
when it is melted into 27 cubes assuming
volume dispersion is uniform
volume of one new cube=(6)^3/27=216/27
now volume of cube=edge^3
edge=
$\sqrt[3]{216 \div 27}$
hence new edge of smaller cube=2