Question

A cubical box of 3 m edge contains cubes having 30 cm of edges. how many number of cubes does the box contains?

Answer 1

number of cube = (volume of big cube)/(volume of small one)

side of big cube = 3 m = 300 cm
side of small cube = 30 cm

number of cubes = (300)³/(30)³ =1000

Answer 2

given ,
           side of cubical box =3 m=300 cm
          volume=300^3 = 27000000 cm^3

given,  
             side of cube= 30 cm
             volume= 30^3 =27000 cm^3

no. of  cubes = 27000000 / 27000
                      = 1000