Answer:
The answer to your question is: 1296
Step-by-step explanation:
Data
2000 --------- 900 students
2001 ---------- 180
2002 ---------- ?
900 students ---------------- 100%
180 students ---------------- x
x = (180 x 100) / 900
x = 20%
1080 students ------------- 100 %
x ------------- 20%
x = (20 x 1080) / 100
x = 216
Total number of students = 1080 + 216 = 1296