Question

A student has compressed a body to one-third of its previous volume. What will be its density?

Answer 1

density = mass/ volume this shows that volume and density are inversely proportional to each other.
let old volume be x and new volume be x/3
density1= mass/volume1
density 2= mass/ volume1/ mass/volume2
=volume1/volume2
=x/x/3
=3x/3
=3.

so new density will be 3 times it's previous density.

hope it helps..

Answer 2

new density becomes 3 times the original one