Question

A metal cube of dimensions 100cm ×100cm × 100cm was melted and remade into smaller cubes of 10cm×10cm×10cm dimension.If density of this metal is 8000kg/cubic meter.Find the total number of small cubes that can be made from the big metal cube. And find the mass of each small metal cube.

Answer 1

Answer:

1000000cm^3 = 1m^3

1000cm^3 = 0.001m^3

1. Number of smaller cubes = Vol. of metal cube/vol. of 1 smaller cube

= 1/0.001

No. of cubes = 1000

2. mass of metal = 8000m^3

mass of small cubes = mass of metal / no. of cubes

= 8000/1000

the mass of each small metal cube = 8m^3