Question

Find a new mass of wood after drilling if a hole of volume 20 cubic cm is drilled into the wood and completely filled with brass of density 8.5g/cm cubic

Answer 1

Answer:

density=mass/volume

mass of brass added= 8.5×20=170

So the new mass of wood will be 170gm more than the previous mass.

This question would have been good if the two of three parameters viz volume, mass and density of wood were given.