Question

a cuboid has dimension 27 CM 18 cm and 9 cm It is melted and recast into in tentacle cube of side 9 cm find the number of cubes obtained

Answer 1

volume of cuboid= n× volume of cube
where n is nomber of cubes.
27×18×9=n×9×9×9
486=n×81
486÷81=n
6=n
answer........

Answer 2

vol . of cuboid = l*b*h
                       = 27*18*9
vol. of cube     =   a*a*a
                       =  9*9*9
 
vol. of cuboid = vol of cube * n          (n = no. of cubes) 
         27*18*9 = 9*9*9*n
                    n = 2*3
                    n = 6
     therefore 6 cubes can be obtained .