JEE Advanced 2023 Chemistry question on Solutions

50 mL of 0.2 molal urea solution (density = 1.012 g mL$^{-1}$ at 300 K) is mixed with 250 mL of a solution containing 0.06 g of urea. Both the solutions were prepared in the same solvent. The osmotic pressure (in Torr) of the resulting solution at 300 K is ___.

[Use: Molar mass of urea = 60 g mol$^{-1}$; gas constant, R = 62 L Torr K$^{-1}$ mol$^{-1}$; Assume, $\Delta_{\text{mix}}$H = 0, $\Delta_{\text{mix}}$V = 0]