500
Room 1 and Room 2 have 58 students in total. 4 students are transferred from Room 1 to Room 2. Now the two rooms have the same number of students. How many students were there in each room before the transfer?
Room 1 had 33 students; Room 2 had 25 students
Solution: Each room has 58/2 = 29 students after the transfer
29 + 4 = 33 (Room1),
29 - 4 = 25 (Room 2)