Question

The number of 5 cm cubes which can be cut from a cube who's edge is 20 cm is

Answer 1

64 cubes can be cut out .
.
by the formula.

$\frac{volume \: of \: big \: cube}{volume \: of \: smaller \: cube}$
is equal to no. of cubes

Answer 2

Answer:

Volume of cube with 5 cm

Volume of cube = (side)³

                        = 5³

                       = 125

∴ Volume of cube with 5 cm = 125 cm³

Now, Volume of cube with 20 cm

Volume of cube = (side)³

                        = 20³

                       = 8000

∴ Volume of cube with 20 cm = 8000 cm³

∴ No. of cubes can be cut  = 8000 / 125 = 64

∴ 64 cubes can be cut

Step-by-step explanation: