Question

Find the volume of wood used to make a closed box of outer dimensions 60cm*45cm*32cm the thickness of wood being 2.5 cm all around

Answer 1

volume of wood = (60×45×32)-{(60-5)×(45-5)×(32-5)}

=86400-59400

=2700$cm^{3}$

Answer 2

Volume = l×b×h
Dimensions of inner= 55×40×27
A.T.Q.
Volume of wood =(60×45×32) -
(55×40×27)
=86400 - 59400
=27000