The heat extracted out of x gram of water initially at 50^° C to cool it down to 0^° C is sufficient to evaporate (1000-x) gram of water also…

The heat extracted out of $\displaystyle x$ gram of water initially at $\displaystyle 50^{\circ} \mathrm{C}$ to cool it down to $\displaystyle 0^{\circ} \mathrm{C}$ is sufficient to evaporate $\displaystyle (1000-x)$ gram of water also initially at $\displaystyle 50^{\circ} \mathrm{C}$. The value of $\displaystyle x$ (closest integer ) is $\displaystyle \_\_\_\_$. (Take latent heat of water $\displaystyle 2256$ kJ/kg. K, specific heat capacity of water $\displaystyle 4200$ J/kg. K)