question_answer

Three metallic cubes whose edges 3 cm, 4 cm and 5 cm respectively are melted and recast to form a single large cube. Find the surface area of the resulting cube.

A)  \[210\,\,c{{m}^{2}}\]             

B)  \[216\,\,c{{m}^{2}}\]

C)  \[214\,\,c{{m}^{2}}\]             

D)  \[343\,\,c{{m}^{2}}\]

E)  None of these