Question

How many wooden cubical block of size 20 cm can be cut from a log of wood of size 3 m by 75cm by 50 cm

Answer 1

Answer:

Step-by-step explanation:wooden blocks=

300*75*50cm  divide by 20 *20*20= 15000*75/8000=75*15/8=1125/8=14 approx

                                                 

Answer 2

$volume \: of \: cuboid = length \times beadth \times height \\ and \\ volume \: of \: cuboid = {side}^{3}$

Let no of cubes =x

therefore

$x \times vol \: of \: cube = vol \: of \: cuboid$

=>x ×20×20×20=300×75×50

=>x=140.625

Hence, 140 cubes can be formed.

Hope it is helpful.