Steady state process- one thousand kilograms per hour of a mixture of benzene as well as toluene that contains 50% by mass are separated by distillation into two fractions. The mass flow of benzene in the top steam is 450kg(benzene/hour) and toluene in the bottom steam is 475kg(toluene/hour). State the material balance on benzene and toluene to compute the unknown components in the output stream.