Question

How many wooden cubical blocks of edge 20 cm can be cut from a log of wood of size 8m by 5m by 80 cm, assuming there is no wastage.

Answer 1

it's once again the same type of question.
you just have to convert meter into centimeter.
so, volume of cube= 20 x 20 x 20 = 8000 cm^3
volume of cuboidal log of wood = 800 x 500 x 80 = 32000000 cm^3
now divide, 32000000 / 8000 = 4000
so the answer is 4000 cubes 

Answer 2

Step-by-step explanation:

edge 20 cm

then

volume of the cube l × l× l

20 × 20 × 20

8000

then convert 8m 5m into cm

8 × 100 = 800cm

5 × 100= 500cm

80cm

800 × 500× 80 = 32000000 cm cube

32000000/8000

4000 cube ans