When ' x^′ × 10^-2 mL methanol (molar mass =32 g; density =0.792 g / cm^3 ) is added to 100 mL water ( density =1 g / cm^3 ), the following diagram…

When ' $\displaystyle x^{\prime} \times 10^{-2} \mathrm{~mL}$ methanol (molar mass $\displaystyle =32 \mathrm{~g}$; density $\displaystyle =0.792 \mathrm{~g} / \mathrm{cm}^3$ ) is added to $\displaystyle 100$ mL water ( density $\displaystyle =1 \mathrm{~g} / \mathrm{cm}^3$ ), the following diagram is obtained. $\displaystyle x=$ $\displaystyle \_\_\_\_$ (nearest integer). [Given : Molal freezing point depression constant of water at $\displaystyle 273.15$ K is $\displaystyle 1.86$ $\displaystyle \mathrm{K} \mathrm{kg} \mathrm{mol}^{-1}$ ]