At the North campus of a performing arts school 30% of students are music majors at the South campus 80% of the students are music majors the campuses are merged into one East campus if 45% of the 1000 students at the East campus our music majors, how many students did the north and south campuses have before the merger?At the North campus of a performing arts school 30% of students are music majors at the South campus 80% of the students are music majors the campuses are merged into one East campus if 45% of the 1000 students at the East campus are music majors, how many students did the north and south campuses have before the merger