Question

Question 13

How many small cubes with edge of 20 cm each can be just accommodated in a cubical box of 2 m edge?

(a) 10 (b) 100 (c) 1000 (d) 10000

Answer 1

Volume of cube $=(Side{)}^3$
Volume of ech small cube $={20}^3=8000c{m}^3$
$=0.008m^3$
Now, volume of the cubical box $=2^3=8m^3$
$\therefore$ Number of small cubes, that can just be accommodated in the cubical box
$=\frac{Volumeofcubicalbox}{Volumeofsmallcube}=\frac{8}{0.008}$
$=1000$