Question

how many 5 c.m cube can be cut from cube ,edge 20 c.m​

Answer 1

Layer 1 contains total of 16 peaces with 5*5 cm dimensions.

and total 4 layers, So 4*16 = 64 equal peaces.

Answer 2

no of cubes can be made=

vol. of the bigger cube/vol. of the smaller cube

=20*20*20/5*5*5

=4*4*4

=64{ans}