Question

A metal cube of volume 2933 cu.cm is melted and three smaller cubes are made out of it. If the edges of two smaller cubes are 5 cm and 4 cm, find the edge of the third smaller cube

Answer 1

volume of two cubes=5³+4³
                                =125+64
                                =189
volume of third cube=2933-189
                                 =2744cm³
                  edge³=2744
                  therfore edge=14.