if its height length and widths are tripled?
weight of an the object is proportional to volume.
when you triple height , volume triples
when you triple sides then the volume which is proportional to area of face
which in turn is proportional to square of the sides
so volume is proportional to square of the sides.
so volume must increase 9 times.
so total volume is increased 27 times.
weight = 5.4 lbs