Question

How many 4cm long cubes can be cut from cube whose edges 20cm in length

Answer 1

hello frnd!!

here's ur answer...

volume of cube(edge=20cm)=side³

=20×20×20

=8000cm³

volume of cube(edge=4cm)=side³

=4×4×4

=64cm³

no. of cubes can be cut from the larger cube= 8000/64

=125

hence, 125 cubes can be cut from the larger cube.

hope this helps...

Answer 2

Edge of First cube =20 cm
Volume of First cube = 20^3
= 8000 cm^3

Now,
Edge of second cube = 4 cm
Volume of second cube = 4^3 = 64 cm^3

No. of cube = Volume of first cube /Volume of second cube
No. of cube = 8000 / 64
= 125


Hope it will help you