An aqueous solution containing 1g of urea boils at ${100.25}^{\circ }\mathrm{C}$ The aqueous solution containing 3g of glucose in the same volume will boil at

Number of moles of urea$=\frac{1}{60}$

Number of moles of glucose $=\frac{3}{180}=\frac{1}{60}$

Since, the molar concentration of the two solutions is same (amount of solvent given is same), the two solutions boil at the same temperature