100 kmol of A-B mixture containing 70 mol % A will be distillated at a total pressure of 1 atm. For this purpose, a differential distillation system will be used. It is known that the equilibrium relationship is y_A=1.26 x_A. If the mol fraction of A remaining in the boiler at the end of the distillation is 0.6; calculate the amount of the mixture remaining in the boiler and the amount of the distillate, and the average composition of the distillate.