Study the charts given below carefully and answer the following questions. Pie…

Study the charts given below carefully and answer the following questions. Pie chart shows the percentage distribution of total students (Science +Commerce) in 12th class of five different Zones and table shows the number of students in same class in science of same zones.

If Western zone also have Arts students and ratio of sum of students of science and commerce in western zone and Arts students in western zone is 5 : 7, then find Arts students in western zone are how much more than commerce students in Southern zone.