Question

A rectangular block of
dimensions 10m x 6m x 3m is
lying on a horizontal surface with
its smallest area in contact with
the surface. If the work done in
arranging it with its largest area
in contact with the surface is
13.86MJ, the density of the body
is
1) 2200 gm/cc 2) 2.2 kg/m3
3) 2.2 gm/cc 4) 2200 kg/m3
I need explanation pls​

Answer 1

Answer:

Answer is option 4) 2200 kg/m³

hope the attached solution helps.