There are two cuboidal boxes as shown in the figure. Which box requires the lesser amount of material to make?
 

(a) Volume of the cuboid $= l \times b \times h = 60 \times 40 \times 50 = 120000 c{m}^3$

(b) Volume of cube$= {\left(Side\right)}^3 = {\left(50\right)}^3 = 50 \times 50 \times 50 = 125000 c{m}^3$

The Cuboidal box that requires lesser amount of material to make is (a).