Answer:
They are the same.
Step-by-step explanation:
IF the materials or in this case a liquid are the same then the density would be the same. Density is a measurement of amount of mass for a given volume. Since both are filled with water, the density would be the same since water weighs the same and we are using a set volume.
Density does not depend on the amount of material present in the sample. Water has a density of 1.0g/mL. That density is the same whether you have a small glass of water or a swimming pool full of water.