JEE Advanced 2024 Chemistry question

Vessel-1 contains g of a non-volatile solute **X** dissolved in g of water. Vessel-2 contains g of another non-volatile solute **Y** dissolved in g of water. Both the vessels are at the same temperature and pressure. The molar mass of **X** is 80% of that of **Y**. The van't Hoff factor for **X** is 1.2 times of that of **Y** for their respective concentrations. The elevation of boiling point for solution in Vessel-1 is % of the solution in Vessel-2.