The water from the 5% glucose solution will flow into the 10% one, as water molecules will flow from a region of high water potential (dilute solution) to a region of lower water potential (concentrated solution) by osmosis.
Osmosis only occurs when a differntially membrane exist, and its only about the net movement of water particles.
Therfore the result would be the water volume in the 10% glucose would rise, and the solute in the original 10% one would be less concentrated, while originally in the 5% one would be more concentrated.