Find the volume of cuboid.

Given:
Length of the cuboid= $20\mathrm{cm}$
Width of the cuboid= $15\mathrm{cm}$
Height of the cuboid= $10\mathrm{cm}$
To Find:
The volume of the cuboid
Solution:
Using Formula: Volume of the cuboid =  $\mathrm{L}\times \mathrm{B}\times \mathrm{H}$
Volume of cuboid = $20 \mathrm{cm}\times 15 \mathrm{cm}\times 10 \mathrm{cm}$
                                =   $3000 {\mathrm{cm}}^3$
Therefore, the correct option is A.