We don't know what size marbles you have, so we can't tell you their volume.
But we can tell you that you had better get the same answer no matter what
method you use, otherwise something is definitely fishy. The answer never depends
on what method you use to find it.
A beaker is used to measure volume using water displacement.
Water Displacement
displace it
The volume of an object can be determined by the displacement of water. By dropping the object into a measuring container of water, where the volume of the water is known, the object's volume can then be calculated by subtracting the volume of the water by the volume of the water and object combined.
it will dissolve
A beaker is used to measure volume using water displacement.
You fill your displacement cup with water until the hole is finished dripping. Then, you're going to add the four marbles that you asked for. But before you add the marbles inside the displacement cup, you must place a graduated cylinder under the hole in the displacement cup so you can find the volume of a marble. When you discover your results, divide how much water is in the graduated cylinder by the number of marbles you inserted. In this case, it would four.
Water Displacement
displace it
The volume of an object can be determined by the displacement of water. By dropping the object into a measuring container of water, where the volume of the water is known, the object's volume can then be calculated by subtracting the volume of the water by the volume of the water and object combined.
using water displacement method
volume
it will dissolve
Displacement method.... Is the method to find volume of an irregular object
Use a scale to find the mass of several marbles. Put some water in a graduated cylinder. Take a reading. Place all the marbles in the grad. cylinder with the water, which will rise. Take another reading. Make sure the marbles are completely submerged. Subtract the 2 readings. This gives the volume of the marbles. This is called the water displacement method. Divide mass by volume. This gives you the density.
Volume displacement.
The volume of the water in Beaker X will be 100cm3, as you are not adding any more water to the equation (50X+100Y is not 150Y or X, but 50X+100Y) The total volume of matter in Beaker X will be 150cm3, and if the beaker is labelled, the volume measure will indicate 150cm3 due to the displacement of water. But as the answer to your question, the volume of water in Beaker X must be 100cm3 even though visual indicators will not show this due to the displacement of water by marbles