PLEASEEEEIn a school of 2000 students, the ratio of teachers to students is 3:80.Some teachers join the school and the ratio changes to 1:20.Find the number of teachers who joined the school.

Answer:The answer to your questions is: 25 new teachersStep-by-step explanation:Data# of students = 2000ratio = 3:80 teachers to studentsNew teachers = ?ProcessI suggest to use rule of three to solve this problem                      3 teachers ----------------  80 students                       x                ----------------  2000 students                   x = (2000 x 3) / 80 = 75 teachers                Number of initial teachers = 75The ratio change to 1:20                      1 teacher -------------------  20 students                      x             -------------------   2000 students                      x = (2000 x 1) / 20                     x = 100 teachersNumber of new teachers = 100 - 75 = 25