Understanding the Problem

* The marbles in Beaker X take up 50 cm³. This space is not available for water.

* When you pour water into Beaker X, the water will fill the space *around* the marbles.

The Solution

Since the marbles take up 50 cm³ of space, the water will only be able to fill the remaining space in Beaker X. However, the problem doesn't tell us the total volume of Beaker X.

What We Can Say:

* The water will not exceed 100 cm³ in Beaker X, as that's the total volume of water being poured.

* The final volume of water in Beaker X will be less than 100 cm³ because the marbles take up some of the space.

To determine the exact volume of water in Beaker X, we would need to know the total volume of Beaker X.