Metal A melts at 1200C and metal B at 900c. Binarysolidifies elactically at 40% A content and the melting temperatureof the other composition is 675C. The maximum dissolution amount ofB in A is 15% at eutectic temperature and 3% at room temperature.The dissolution amount of A in B is 18% at eutectic temperature and4% at room temperature.a) Draw the phase diagram of this alloysystem and show the crystallizations b) Calculate the% ratios ofthe phases of the alloy containing 90% A at 850C. c) Calculate the%ratio of the 40% A containing alloy's phases at 675C. d) Calculatethe% ratio of the phases of the alloy containing 70% B at roomtemperature.